Physics for Scientists and Engineering Part 1
4th Edition
ISBN: 9780136139232
Author: Douglas C. Giancoli
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 4.5, Problem 1BE
Return to the first Chapter-Opening Question, page 83, and answer it again now. Try to explain why you may have answered differently the first time.
CHAPTER-OPENING QUESTIONS—Guess now!
A 150-kg football player collides head-on with a 75-kg running back. During the collision, the heavier player exerts a force of magnitude FA on the smaller player. If the smaller player exerts a force FB back on the heavier player, which response is most accurate?
- (a) FB = FA.
- (b) FB < FA.
- (c) FB > FA.
- (d) FB = 0.
- (e) We need more information.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Mechanic Physics:
Please make sure this is right!!
In the figure, block A (mass 1.6 kg) slides into block B (mass 2.9 kg), along a frictionless surface. The directions of velocities before and after the collision are indicated; the corresponding speeds are vAi = 5.7 m/s, vBi = 2.7 m/s, and vBf = 4.4 m/s. What is velocity vAf (including sign, where positive denotes motion to the right)?
There is a famous intersection in Kuala Lumpur, Malaysia, where thousands of vehicles pass each hour. A 750 kg Tesla Model S traveling south crashes into a 1250 kg Ford F-150 traveling east. What are the initial speeds of each vehicle before collision if they stick together after crashing into each other and move at an angle of 320 and a common velocity of 18 m/s. Draw a diagram and show all your work.
Please make the solution and final answer handwritten. Thank you! Rate will be given
A car of mass 1,621 kg collides with a wall. The initial speed of the car is 16.4 m/s. After collision, the car bounced in the opposite direction at a speed of 4.6 m/s. If the collision lasted for 176 ms, what was the average force in newtons exerted on the car by the wall? Express your answer in two decimal places with units of Newton.
Chapter 4 Solutions
Physics for Scientists and Engineering Part 1
Ch. 4.4 - Suppose you watch a cup slide on the (smooth)...Ch. 4.5 - Return to the first Chapter-Opening Question, page...Ch. 4.5 - A massive truck collides head-on with a small...Ch. 4.5 - If you push on a heavy desk, does it always push...Ch. 4.7 - A 10.0-kg box is dragged on a horizontal...Ch. 4 - Why does a child in a wagon seem to fall backward...Ch. 4 - A box rests on the (frictionless) bed of a truck....Ch. 4 - If the acceleration of an object is zero, are no...Ch. 4 - If an object is moving, is it possible for the net...Ch. 4 - Only one force acts on an object. Can the object...
Ch. 4 - When a golf ball is dropped to the pavement, it...Ch. 4 - If you walk along a log floating on a lake, why...Ch. 4 - Why might your foot hurt if you kick a heavy desk...Ch. 4 - When you are running and want to slop quickly, you...Ch. 4 - (a) Why do you push down harder on the pedals of a...Ch. 4 - A father and his young daughter are ice skating....Ch. 4 - Suppose that you are standing on a cardboard...Ch. 4 - A stone hangs by a fine thread from the ceiling,...Ch. 4 - The force of gravity on a 2-kg rock is twice as...Ch. 4 - Would a spring scale carried to the Moon give...Ch. 4 - You pull a box with a constant force across a...Ch. 4 - When an object falls freely under the influence of...Ch. 4 - Compare the effort (or force) needed to lift a...Ch. 4 - Which of the following objects weighs about 1 N:...Ch. 4 - According to Newtons third law. each team in a tug...Ch. 4 - When you stand still on the ground, how large a...Ch. 4 - Whiplash sometimes results from an automobile...Ch. 4 - Mary exerts an upward force of 40N to hold a bag...Ch. 4 - A bear sling, Fig. 430, in used in some national...Ch. 4 - (I) What force is needed to accelerate a child on...Ch. 4 - (1) A net force of 265N accelerates a bike and...Ch. 4 - (I) What is the weight of a 68-kg astronaut (a) on...Ch. 4 - (I) How much tension must a rope withstand if it...Ch. 4 - (II) Superman must stop a 120-km/h train in 150 m...Ch. 4 - (II) What average force is required to stop a...Ch. 4 - (II) Estimate the average force exerted by a...Ch. 4 - (II) A 0.140-kg baseball traveling 35.0 m/s...Ch. 4 - (II) A fisherman yanks a fish vertically out of...Ch. 4 - (II) A 20.0-kg box rests on a table. (a) What is...Ch. 4 - (II) What average force is needed to accelerate a...Ch. 4 - (II) How much tension must a cable withstand if it...Ch. 4 - (II) A 14.0-kg bucket is lowered vertically by a...Ch. 4 - (II) A particular race car can cover a...Ch. 4 - (II) A 75-kg petty thief wants to escape from a...Ch. 4 - (II) An elevator (mass 4850 kg) is to he designed...Ch. 4 - (II) Can cars stop on a dime? Calculate the...Ch. 4 - (II) A person stands on a bathroom scale in a...Ch. 4 - (II) High-speed elevators function under two...Ch. 4 - (II) Using focused laser light, optical tweezers...Ch. 4 - (II) A rocket with a mass of 2.75 106 kg exerts a...Ch. 4 - (II) (a) What is the acceleration of two falling...Ch. 4 - (II) An exceptional standing jump would raise a...Ch. 4 - (II) The cable supporting a 2125-kg elevator has a...Ch. 4 - (III) The 100-m dash can be run by the best...Ch. 4 - (III) A person jumps from the roof of a house...Ch. 4 - (I) A box weighing 77.0 N rests on atable. A rope...Ch. 4 - (I) Draw the free-body diagram for a basketball...Ch. 4 - (I) Sketch the tree body diagram of a baseball (a)...Ch. 4 - (I) A 650-N force acts in a northwesterly...Ch. 4 - (II) Christian is making a Tyrolean traverse as...Ch. 4 - (II) A window washer pulls herself upward using...Ch. 4 - (II) One 3.2-kg paint bucket is hanging by a...Ch. 4 - (II) The cords accelerating the buckets in Problem...Ch. 4 - (II) Two snowcats in Antarctica are towing a...Ch. 4 - (II) A train locomotive is pulling two cars of the...Ch. 4 - (II) The two forces F1 and F2 shown in Fig. 4-40a...Ch. 4 - (II) At the instant a race began, a 65-kg sprinter...Ch. 4 - (II) A mass m is at rest on a horizontal...Ch. 4 - Prob. 40PCh. 4 - (II) Uphill escape ramps are sometimes provided to...Ch. 4 - (II) A child on a sled reaches the bottom of a...Ch. 4 - (II) A skateboarder, with an initial speed of...Ch. 4 - (II) As shown in Fig. 4-41, five balls (masses...Ch. 4 - (II) A 27-kg chandelier hangs from a ceiling on a...Ch. 4 - (II) Three blocks on a frictionless horizontal...Ch. 4 - (II) Redo Example 413 but (a) set up the equations...Ch. 4 - (II) The block shown in Fig. 4-43 has mass m = 7.0...Ch. 4 - (II) A block is given an initial speed of 4.5 m/s...Ch. 4 - (II) An object is hanging by a string from your...Ch. 4 - (II) Figure 4-45 shows a block (mass mA) on a...Ch. 4 - (II) (a) If mA = 13.0 kg and mB = 5.0 kg in Fig....Ch. 4 - (III) Determine a formula for the acceleration of...Ch. 4 - (III) Suppose the pulley in Fig. 446 is suspended...Ch. 4 - (III) A small block of mass m rests on the sloping...Ch. 4 - (III) The double Atwood machine shown in Fig. 4-48...Ch. 4 - (III) Suppose two boxes on a frictionless table...Ch. 4 - (III) The two masses shown in Fig, 450 are each...Ch. 4 - (III) Determine a formula for the magnitude of the...Ch. 4 - (III) A particle of mass m, initially at rest at x...Ch. 4 - (III) A heavy steel cable of length and mass M...Ch. 4 - A person has a reasonable chance of surviving an...Ch. 4 - A 2.0-kg purse is dropped 58 m from the top of the...Ch. 4 - Toms hang glider supports his weight using the six...Ch. 4 - A wet bar of soap (m = 150 g) slides freely down a...Ch. 4 - A cranes trolley at point P in Fig. 4-53 moves for...Ch. 4 - A block (mass mA) lying on a fixed frictionless...Ch. 4 - (a) In Fig. 454, if mA = mB = 1.00 kg and 33.0,...Ch. 4 - The masses mA and mB slide on the smooth...Ch. 4 - A 75.0-kg person stands on a scale in an elevator....Ch. 4 - A city planner is working on the redesign of a...Ch. 4 - If a bicyclist of mass 65 kg (including the...Ch. 4 - A bicyclist can coast down a 5.0 hill at a...Ch. 4 - Francesca dangles her watch from a thin piece of...Ch. 4 - (a) What minimum force F is needed to lift the...Ch. 4 - In the design of a supermarket, there are to be...Ch. 4 - A jet aircraft is accelerating at 3.8m/s2 as it...Ch. 4 - A 7650-kg helicopter accelerates upward at 0.80...Ch. 4 - A super high-speed 14-car Italian train has a mass...Ch. 4 - A fisherman in a boat is using a 10-lb test...Ch. 4 - An elevator in a tall building is allowed to reach...Ch. 4 - Two rock climbers, Bill and Karen, use safety...Ch. 4 - Three mountain climbers who are roped together in...Ch. 4 - A doomsday asteroid with a mass of 1.0 1010kg is...Ch. 4 - A 450-kg piano is being unloaded from a truck by...Ch. 4 - Consider the system shown in Fig. 462 with mA =...Ch. 4 - A 1.5-kg block rests on top of a 7.5-kg block...Ch. 4 - You are driving home in your 750-kg car at 15 m/s....Ch. 4 - (II) A large crate of mass 1500 kg starts sliding...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Can the potential of a nonuniformly charged sphere be the same as that of a point charge? Explain.
University Physics Volume 2
What is the volume of one mole of air, at room temperature and 1 atm pressure?
An Introduction to Thermal Physics
18. A 1.0 kg block is attached to a spring with spring constant 16 N/m. While the block is sitting at rest, a s...
College Physics: A Strategic Approach (3rd Edition)
The tension in the string.
Physics (5th Edition)
Choose the best answer to each of the following. Explain your reasoning. Most of the that was outgassed from Ea...
The Cosmic Perspective Fundamentals (2nd Edition)
Write each number in decimal form.
43. 5.5 × 10–11
Applied Physics (11th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Please make the solution and final answer handwritten. Thank you! Rate will be given A lump of clay of mass 0.24 kg is dropped from a height of 8.1 m. The clay comes to a full stop 0.068 s after the moment it first touched the ground. What is the magnitude in newtons of the average force of impact that the clay experienced? Express your answer in two decimal places, with units of Newtons.arrow_forwardPlease Provide Handwritten Answer . A golf club impacts a golf ball with a force equal to 100* [(t+1)^4]*t (N) where t is in seconds. The golf ball lands 1000m away from the tee after the strike of the club on the 1kg ball at rest. If the ball is observed to launch at a 20 deg. angle after impact, what is the hang time of this golf ball?___sec Assume 10 m/s^2 for acceleration due to gravity.arrow_forwardThe solution is incomplete. Pls. read the directions. I said in GRESA format.Directions: Illustrate and solve the following problems in a short bond paper. Show the complete solution (in GRESA format), always include the SI units on your solution, express your answer in two decimal places and box your final answer.2. The driver of an SUV (m = 1800 kg) moving at a velocity of 3.50 m/s isn’t paying attention and rear ends a car (m = 1200 kg) that is at rest as it waits for the red light to turn green. On impact, both drivers lock their brakes. The SUV and car stick together and travel beyond the line. What is the velocity of the cars after the collision?arrow_forward
- Three forces of magnitudes F1=4.0N, F2=6.0N, and F3=8.0N are applied to a block of mass m=2.0kg, initially at rest, at angles shown on the diagram. (Figure 1) In this problem, you will determine the resultant (net) force by combining the three individual force vectors. All angles should be measured counterclockwise from the positive x axis (i.e., all angles are positive). How far (in meters) will the block move in 5.0 s? Recall that it starts from rest.arrow_forwardhelp please. If a 1467 kg car, moving at 9 m/s north, hits and sticks to a 2237 kg truck, moving at 10 m/s south, and they travel off together at the same speed, find that speed. Hint: here the masses are moving in opposite directions, so the velocities should have opposite signs. Call North positive and South negative. Use the "hit and stick" or inelastic formula Also, a positive answer would indicate motion to the north and a negative answer would show southward motion - leave positive/negative in your answer.arrow_forwardGive me right solution according to the question Note: Diagram not given. A 1kg block is placed at an inclined sloped at 10 degrees with the horizontal and is pushed up by a 150N force for 3 seconds from which then the 150N force is then removed. The block will continue sliding upward due to is momentum until it will completely stop. How far has the block traveled? if the coefficient of friction is 0.3 between the block and the inclined plane.arrow_forward
- please help explain these to me.. I don't understand it though. Thanks topic: Hooke's Law of Elasticity 1) What happens when a material is deformed? Why? 2) Why do some objects return to their original size and shape when loaded? Why do some materials do not return to their original form when unloaded?arrow_forwardHelp please. Teacher hasn't returned my work on this yet, and we're having a quiz on Monday. A 2.75-kg cat moves in a straight line (x-axis). The graph on the right shows the x-component of the cat’s velocity as a function of time. What is the net force on the cat? a. 0b. 27 Nc. 11 Nd. 2 N The maximum net force occurs during the time interval a. t = 0 to t = 10 secondsb. t = 6 to t = 10 secondsc. t = 2 to t = 6 secondsd. t = 0 to t = 2 seconds The net force on the cat is equal to zero between the time intervala. t = 6 to t = 10 secondsb. t = 2 to t = 6 secondsc. t = 0 to t = 10 secondsd. t = 0 to t = 2 seconds Thanks!arrow_forwardUSING THE UAM FORMULA, SOLVE THIS 1. A 6 kg object accelerates at 2.5 m/s^2 after a force is applied for 10s. Find the(a) Force applied. (b) speed of the object at the end of 10 s, (c) change in momentum of the block, and (d) impulse produced by the force. 2. How much force is needed to stop a 10 kg object moving at 4 m/s in just 10 s? Explain your answer.arrow_forward
- Solve numbers 1-3 with a full solution. 1. Compare the momentum of a 2000kg van moving at 30 m/s with a 5000kg truck moving at 12 m/s. 2. A 300 N force applied to an object for 10s. What is the impulse of the object?3. What is the momentum of a 1000kg car moves at 20 m/s?arrow_forwardHi, please show full solutions and also explain how you get the answers in physics terms so it's understandable. The correct final answers are written beside too. Thank you. 13. A ball of mass m, is stationary when a ball of mass 2m collides with it travelling with a speed of v. If the collision between the 2 balls is completely inelastic, show that the final velocity of the balls is 2/3 v.arrow_forwardRank the following three collisions in terms of the extent of damage that the car would experience. Explain your reasons for ranking the collisions as you did. (a) A car going 10 m/s striking an identical car that was stationary on level ground. (b) A car going 10 m/s running into an immovable concrete wall. (c) A head-on collision between identical cars, boom going 10 m/s.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Momentum | Forces & Motion | Physics | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=DxKelGugDa8;License: Standard YouTube License, CC-BY