EP PHYSICS -MOD.MASTERING (18W)
5th Edition
ISBN: 9780136782490
Author: Walker
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 9, Problem 29PCE
Suppose the car in Example 9-13 has an initial speed of 20.0 m/s and that the direction of the wreckage after the collision is 40.0° above the x axis Find the initial speed of the minivan and the final speed of the wreckage.
Expert Solution & Answer
Learn your wayIncludes step-by-step video
schedule06:41
Students have asked these similar questions
In a game of pool, the cue ball strikes another ball initially at rest. After the collision, the cue ball moves at 3.50 m/s along a line making an angle of 22.0 degrees with its original direction of motion and the second ball has a speed of 2.00 m/s.
a) Find the angle between the direction of motion of the second ball and the original direction of motion of the cue ball.
b) Find the original speed of the cue ball.
c) Is the kinetic energy conserved? Show your proof.
A car moving with an initial speed v collides with a second stationary car that is 54.9 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 39.7 percent of the original speed. Calculate the final speed of the second car. Give your answer in units of the initial speed (i.e. as a fraction of v).
In a game of curling, a collision occurs between two stones of equal mass. The object stone is initially at rest. After the collision, the stone that is thrown hasa speed of 0.56m/s in some direction, represented by q. The object stone acquires a velocity vf2= 0.42m/s at an angle of f= 30.0o from the original direction of motion of the thrown stone. Determine the initial velocity of the thrown stone.
Chapter 9 Solutions
EP PHYSICS -MOD.MASTERING (18W)
Ch. 9.1 - Enhance Your Understanding (Answers given at the...Ch. 9.2 - Enhance Your Understanding (Answers given at the...Ch. 9.3 - Enhance Your Understanding (Answers given at the...Ch. 9.4 - Enhance Your Understanding (Answers given at the...Ch. 9.5 - Prob. 5EYUCh. 9.6 - Enhance Your Understanding (Answers given at the...Ch. 9.7 - Enhance Your Understanding (Answers given at the...Ch. 9.8 - Prob. 8EYUCh. 9 - If you drop your Keys, their momentum increases as...Ch. 9 - By what factor does an objects kinetic energy...
Ch. 9 - A system of particles is known to have zero...Ch. 9 - A system of particles is known to have zero...Ch. 9 - On a calm day you connect an electric fan to a...Ch. 9 - Crash statistics show that it is safer to be...Ch. 9 - (a) As you approach a stoplight, you apply the...Ch. 9 - An object at rest on a frictionless surface is...Ch. 9 - (a) Can two objects on a horizontal frictionless...Ch. 9 - Two cars collide at an intersection. If the cars...Ch. 9 - At the instant a bullet is fired from a gun, the...Ch. 9 - Prob. 12CQCh. 9 - In the classic movie The Spirit of St. Louis,...Ch. 9 - A tall, slender drinking glass with a thin base is...Ch. 9 - Prob. 15CQCh. 9 - Prob. 16CQCh. 9 - What is the mass of a mallard duck whose speed is...Ch. 9 - (a) What is the magnitude of the momentum of a...Ch. 9 - A 54 kg person walks due north with a speed of 1.2...Ch. 9 - A 26.2-kg dog is running northward at 2.70 m/s,...Ch. 9 - Predict/Calculate Two air-track carts move toward...Ch. 9 - A 0.145-kg baseball is dropped from rest. If the...Ch. 9 - A 285-g ball falls vertically downward, hitting...Ch. 9 - Object 1 has a mass m1 and a velocity...Ch. 9 - Your car rolls slowly in a parking lot and bangs...Ch. 9 - Predict/Explain A net force of 200 N acts on a...Ch. 9 - Predict/Explain Referring to the previous...Ch. 9 - Predict/Explain Two identical cars, each traveling...Ch. 9 - Force A has a magnitude F and acts for the time t...Ch. 9 - Find the magnitude of the impulse delivered to a...Ch. 9 - A 0.45-kg croquet ball is initially at rest on the...Ch. 9 - When spiking a volleyball, a player changes the...Ch. 9 - Force Platform A force platform measures the...Ch. 9 - Air Bag Safety If a driver makes contact with a...Ch. 9 - To make a bounce pass, a player throws a 0.60-kg...Ch. 9 - BIO Concussion Impulse One study suggests that a...Ch. 9 - Predict/Calculate A 0.14-kg baseball moves toward...Ch. 9 - A player bounces a 0.43-kg soccer ball off her...Ch. 9 - Two ice skaters stand at rest in the center of an...Ch. 9 - A 0.042-kg pet lab mouse sits on a 0.35-kg...Ch. 9 - An object initially at rest breaks into two pieces...Ch. 9 - A 92-kg astronaut and a 1200-kg satellite are at...Ch. 9 - The recoil of a shotgun can be significant....Ch. 9 - A plate drops onto a smooth floor and shatters...Ch. 9 - Suppose the car in Example 9-13 has an initial...Ch. 9 - Two 78.5-kg hockey players skating at 4.47 m/s...Ch. 9 - An air-track cart with mass m1 = 0.32 kg and...Ch. 9 - Predict/Calculate A bullet with a mass of 4.0 g...Ch. 9 - BIO Concussion Recoil The human head can be...Ch. 9 - Two objects moving with a speed v travel in...Ch. 9 - In the apple-orange collision in Example 9-16,...Ch. 9 - A732-kg car stopped at an intersection is...Ch. 9 - The collision between a hammer and a nail can be...Ch. 9 - Predict/Calculate A charging bull elephant with a...Ch. 9 - Prob. 39PCECh. 9 - The three air carts shown in Figure 9-28 have...Ch. 9 - An air-track cart with mass m =0.25 kg and speed...Ch. 9 - Predict/Explain A stalactite in a cave has drops...Ch. 9 - Prob. 43PCECh. 9 - Find the x coordinate of the center of mass of the...Ch. 9 - Prob. 45PCECh. 9 - A pencil standing upright on its eraser end falls...Ch. 9 - Prob. 47PCECh. 9 - The location of the center of mass of the...Ch. 9 - The Center of Mass of Sulfur Dioxide Sulfur...Ch. 9 - Prob. 50PCECh. 9 - A 0 726-kg rope 2 00 meters long lies on a floor...Ch. 9 - Prob. 52PCECh. 9 - Prob. 53PCECh. 9 - Helicopter Thrust During a rescue operation, a...Ch. 9 - Rocks for a Rocket Engine A child sits in a wagon...Ch. 9 - A 57.8-kg person holding two 0.880-kg bricks...Ch. 9 - A fire hose can expel water at a rate of 9.5 kg/s...Ch. 9 - A 0 540-kg bucket rests on a scale Into this...Ch. 9 - Predict/Calculate Holding a long rope by its upper...Ch. 9 - CE Object A has a mass m, object B has a mass 2m,...Ch. 9 - CE Object A has a mass m, object B has a mass 4m,...Ch. 9 - CE A juggler performs a series of tricks with...Ch. 9 - A golfer attempts a birdie putt, sending the 0...Ch. 9 - Predict/Calculate Two trucks drive directly away...Ch. 9 - Prob. 65GPCh. 9 - A 1 35-kg block of wood sits at the edge of a...Ch. 9 - In a stunt, three people jump off a platform and...Ch. 9 - Predict/Calculate The carton of eggs shown in...Ch. 9 - The Force of a Storm During a severe storm in Palm...Ch. 9 - An experiment is performed in which two air carts...Ch. 9 - Figure 9-40 shows position-versus-time data from...Ch. 9 - To balance a 35.5-kg automobile tire and wheel, a...Ch. 9 - A hoop of mass M and radius R rests on a smooth,...Ch. 9 - Predict/Calculate A 63-kg canoeist stands in the...Ch. 9 - Prob. 75GPCh. 9 - A young hockey player stands at rest on the ice...Ch. 9 - Prob. 77GPCh. 9 - A 0.454-kg block is attached to a horizontal...Ch. 9 - BIO Escaping Octopus The giant Pacific octopus...Ch. 9 - Prob. 80GPCh. 9 - The three air carts shown in Figure 9-44 have...Ch. 9 - Unlimited Overhang Four identical textbooks, each...Ch. 9 - Consider a one-dimensional. head-on elastic...Ch. 9 - Two air carts of mass m1 = 0.84 kg and m2 = 0.42...Ch. 9 - Golden Earrings and the Golden Ratio A popular...Ch. 9 - Amplified Rebound Height Two small rubber balls...Ch. 9 - Predict/Calculate Weighing a Block on an Incline A...Ch. 9 - Predict/Calculate A uniform rope of length L and...Ch. 9 - Prob. 89PPCh. 9 - Prob. 90PPCh. 9 - Prob. 91PPCh. 9 - Prob. 92PPCh. 9 - Referring to Example 9-12 Suppose a bullet of mass...Ch. 9 - Referring to Example 9-12 A bullet with a mass m =...Ch. 9 - Referring to Example 9-19 Suppose that cart 1 has...Ch. 9 - Referring to Example 9-19 Suppose the two carts...
Additional Science Textbook Solutions
Find more solutions based on key concepts
73. Mars has a small moon, Phobos, that orbits with a period of 7 h 39 min. The radius of Phobos’ orbit is 9.4 ...
College Physics: A Strategic Approach (4th Edition)
The diagram shows Bob’s view of the passing of two identical spaceships. Anna’s and his own, where v=2 . The le...
Modern Physics
Energy in Thermal Physics Estimate the number of air molecules in an average-sized room.
An Introduction to Thermal Physics
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
(I) What is the magnitude of the electric field between two parallel plates 4.0 mm apart if the potential diffe...
Physics for Scientists and Engineers with Modern Physics
26.9 Now the three resistors of Exercise 26.8 are connected in series to the same battery. Answer the same ques...
University Physics (14th 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
- A car with a mass of 970 kg and a speed of v1 = 17.5 m/s approaches an intersection, as shown in the figure. A 1300 kg minivan traveling at v2 is heading for the same intersection. The car and minivan collide and stick together. The direction of the wreckage after the collision is θ = 44.0 degrees above the x axis. Find the initial speed of the minivan, assuming external forces can be ignored. Find the final speed of the wreckage.arrow_forwardParticle 1 moving at a speed of 1.8 m/s undergoes a non linear collision with identical particle 2 initially at rest. After the collision, particle 2 moves at speed 1.0 m/s, at an angle of θ2 = 50°. (a) What is the magnitude of the velocity of particle 1 after the collision?________m/s(b) What is its direction?_______°arrow_forwardA paintball game instrument company wants to test the speed of the paintball coming out of the muzzle of their newly designed gun. They want to test by firing the ball horizontally from very close on a plastic block sitting on a flat surface and measuring the distance, d, through which the paintball and the block system slides before coming to the rest. The paintball sticks to the block after collision. The kinetic friction coefficient of the surface and the plastic is listed as u. Derive an equation of the speed of the ball in terms of u, d and any other relevant parameters. Assume mass of the ball is m1 and that of the block is m2. Here are some steps to guide you through the process. a. sketch the situation and write the principle of conservation equation for the collision. Solve this equation for the speed of the ball before collision in terms of the speed of the block and ball system aftercollision. b. Use energy concept to find the speed of the ball and the block system right…arrow_forward
- a)If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward? Express your answer numerically in meters per second. b) If the ball hits Olaf and bounces off his chest horizontally at 8.30 m/sm/s in the opposite direction, what is his speed vf after the collision? Express your answer numerically in meters per second.arrow_forwardThe figure shows a glancing (not head-on) collision between two billiard balls (viewed from above). Ball 1 is initially moving with 2.0 m/s in the positive x direction; ball 2 is initially moving with 1.0 m/s in the opposite direction. After the collision, ball 2 moves at 1.41 m/s in the negative y direction. a) What are the direction (the angle θ from the x axis) and speed of ball 1 after the collision? b) Is this an elastic collision? If not, what fraction of the original energy is lost in the collision?arrow_forwardA 75-g ball is dropped from rest from a height of 2.2 m. It bounces off the floor and rebounds to a maximum height of 1.7 m. If the ball is in contact with the floor for 0.024 s, what is the magnitude and direction of the average force exerted on the ball by the floor during the collision?arrow_forward
- A 35-g bullet is fired into a wooden block of 10 kg which is sitting on the surface with a kinetic coefficient of friction of 0.2. If the bullet's speed is Vo = 350 m/s as it is shown in the figure, and it is embedded into the wooden block. Which of the following is the maximum displacement of the block after the bullet is embedded in ? Neglect the size of the bullet and block. m M Lütfen birini seçin: a. None b. 0,064 m O c. 0,380 m O d. 1,277 m e. 0,105 marrow_forwardA rocket with initial mass M kilogram (kg) including 60,250 kg of its onboard fuel mixture is fired vertically upward in a vacuum ( that is free space where gravitational field is negligible). During the burning process, the exhaust gases are ejected at a constant rate x kg/s and at a constant velocity with magnitude 400 m/s relative to the rocket. Assume the rocket was initially at rest. After few seconds the speed of the rocket relative to earth was recorded as 200 In (6.25) m/s and it took the rocket 14 additional seconds to reach its Maximum Speed of 400 In(6) m/s. Find x. Note: Record your answer without units. Enter an integer or a fully reduced fraction such as -2, 7, -3/4, 41/7 etc. No spaces pleasearrow_forwardIn a game of billiards, the cue ball is traveling eastward when it strikes a second ball that is initially at rest. After the collision, the cue ball moves at 4.47 m/s, 25.0° south of east, and the second ball's speed is 3.25 m/s. At what angle (north of east) does the second ball travel? Assume each ball has a mass of 162 g. What was the speed of the cue ball prior to the collision?arrow_forward
- Two protons collide in a perfectly elastic collision. All motion occurs along a straight line. The first proton is moving at 6.90 x 106 m/s and the other is moving in the opposite direction at 11.0 x 106 m/s. What are their velocities after the collision?arrow_forwardChapter 09, Problem 095 In the arrangement of the figure, billiard ball 1 moving at a speed of 4.2 m/s undergoes a glancing collision with identical billiard ball 2 that is at rest. After the collision, ball 2 moves at speed 2.5 m/s, at an angle of e, = 53°. What are (a) the magnitude and (b) the direction (angle 0,) of the velocity of ball 1 after the collision? Vi em em lem lom nem (a) Number Units plem blem (b) Number Units oblem Click if you would like to Show Work for this question: Open Show Workarrow_forwardYou’re playing pool and you line up a shot on the 3 ball. You want the 3 ball to be deflected by an angle of theta 3 = 25 degrees at a velocity v3 = 1.3 m/s so that it will make it into a side pocket. What initial velocity must you give the cue ball in order to make this shot and what will be the velocity and angle of the cue ball following the collision? Recall that the mass of a cue ball is 0.17 kg, while the mass of a 3 ball is 0.16 kg. Hint: it might be useful to express the mass of the 3 ball as a fraction of the mass of the cue ball.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Elastic and Inelastic Collisions; Author: Professor Dave Explains;https://www.youtube.com/watch?v=M2xnGcaaAi4;License: Standard YouTube License, CC-BY