PHYSICS FOR SCIEN & ENGNR W/MOD MAST
4th Edition
ISBN: 9780134112039
Author: GIANCOLI
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2, Problem 28P
(II) The position of a racing car, which starts from rest at t = 0 and moves in a straight line, is given as a function of time in the following Table. Estimate (a) its velocity and (b) its acceleration as a function of time. Display each in a Table and on a graph.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
45) A particle moves in a straight line with an initial velocity of 30 m/s and constant acceleration 30 m/s2. (a) What is its displacement at t = 5 s? (b) What is its velocity at this same time?
(6) Water striders are insect that propel themselves on the surface of ponds by creating vortices in the water shed by their driving legs. The velocity-versus-time graph of 2 a 17 mm long water strider that moved in a straight line was created from a video. See the figure attached. The insect started from rest, sped up by taking two strides, and then slowed down until it stopped. Estimate
(a) maximum speed (in m/s),
(b) the maximum acceleration (in m/s2 )
(c) the total displacement (in m) of the water strider. Note that the velocity on the graph in the textbook is given in units of length of water strider body per second.
72) (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is
thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long a time
would it take to reach the ground if it is thrown straight down with the same speed?
ution
S
Chapter 2 Solutions
PHYSICS FOR SCIEN & ENGNR W/MOD MAST
Ch. 2.1 - An ant starts at x = 20cm on a piece of graph...Ch. 2.2 - A car travels at a constant 50km/h for 100 km. It...Ch. 2.3 - What is your speed at the instant you turn around...Ch. 2.4 - A powerful car is advertised to go from zero to 60...Ch. 2.4 - A car moves along the x axis. What is the sign of...Ch. 2.4 - The position of a particle is given by the...Ch. 2.5 - A car starts from rest and accelerates at a...Ch. 2.7 - Return to the Chapter-Opening Question. page 18,...Ch. 2.7 - If a car is said to accelerate at 0.50 g, what is...Ch. 2.7 - Two balls are thrown from a cliff. One is thrown...
Ch. 2 - Does a car speedmeter measure speed, velocity, or...Ch. 2 - Can an object have a varying speed if its velocity...Ch. 2 - When an object moves with constant velocity, does...Ch. 2 - If one object has a greater speed than a second...Ch. 2 - Compare the acceleration of a motorcycle that...Ch. 2 - Can an object have a northward velocity and a...Ch. 2 - Can the velocity of an object be negative when its...Ch. 2 - Give an example where both the velocity and...Ch. 2 - Two cars emerge side by side from a tunnel. Car A...Ch. 2 - Can an object be increasing in speed as its...Ch. 2 - A baseball player hits a ball straight up into the...Ch. 2 - As a freely falling object speeds up, what is...Ch. 2 - You travel from point A to point B in a car moving...Ch. 2 - Can an object have zr velocity and nonzero...Ch. 2 - Can an object have zero acceleration and nonzero...Ch. 2 - Which of these motions is not at constant...Ch. 2 - In a lecture demonstration, a 3.0-m-long vertical...Ch. 2 - Describe in words the motion plotted in Fig. 236...Ch. 2 - Describe in words the motion of the object graphed...Ch. 2 - (I) If you are driving 110 km/h along a straight...Ch. 2 - What must your cars average speed be in order to...Ch. 2 - (I) A particle at t1 = 2.0 s is at x1 = 4.3 cm and...Ch. 2 - A rolling ball moves from x1 = 3.4 cm to x2 = 4.2...Ch. 2 - (II) According to a rule-of-thumb, every five...Ch. 2 - (II) You are driving home from school steadily at...Ch. 2 - (II) A horse canters away from its trainer in a...Ch. 2 - (II) T x = 34 + 10t 2t3, where t is in seconds...Ch. 2 - (II) The position of a rabbit along a straight...Ch. 2 - (II) On an audio compact disc (CD), digital bits...Ch. 2 - A car traveling 95 km/h is 110 m behind a truck...Ch. 2 - (II) Two locomotives approach each other on...Ch. 2 - (II) Digital bits on a 12.0-cm diameter audio CD...Ch. 2 - (II) An airplane travels 3100 km at a speed of 720...Ch. 2 - (II) Calculate the average speed and average...Ch. 2 - (II) The position of a ball rolling in a straight...Ch. 2 - (II) A dog runs 120m away from its master in a...Ch. 2 - (III) An automobile traveling 95 km/h overtakes a...Ch. 2 - (III) A bowling ball traveling with constant speed...Ch. 2 - (I) A sports car accelerates from rest to 95 km/h...Ch. 2 - (I) At highway speeds, a particular automobile is...Ch. 2 - (I) A sprinter accelerates from rest to 9.00m/s in...Ch. 2 - (I) Figure 2-37 shows the velocity of a train as a...Ch. 2 - (II) A sports car moving at constant speed travels...Ch. 2 - (II) A car moving in a straight line starts at x =...Ch. 2 - (II) A particular automobile can accelerate...Ch. 2 - (II) A particle moves along the x axis. Its...Ch. 2 - (II) The position of a racing car, which starts...Ch. 2 - (II) The position of an object is given by x = At...Ch. 2 - (I) A car slows down from 25 m/s to rest in a...Ch. 2 - (I) A car accelerates from 12 m/s to 21 m/s in 6.0...Ch. 2 - (I) A light plane must reach a speed of 32m/s for...Ch. 2 - (II) A baseball pitcher throws a baseball with a...Ch. 2 - (II) Show that =(+0)/2 (see Eq. 2-12d) is not...Ch. 2 - (II) A world-class sprinter can reach a top speed...Ch. 2 - (II) An inattentive driver is traveling 18.0 m/s...Ch. 2 - (II) A car slows down uniformly from a speed of...Ch. 2 - (II) In coming to a stop, a car leaves skid marks...Ch. 2 - (II) A car traveling 85 km/h slows down at a...Ch. 2 - (II) A car traveling at 105 km/h strikes a tree....Ch. 2 - (II) Determine the stopping distances for an...Ch. 2 - (II) A space vehicle accelerates uniformly from 65...Ch. 2 - (II) A 75-m-long train begins uniform acceleration...Ch. 2 - (II) An unmarked police car traveling a constant...Ch. 2 - (III) Assume in Problem 44 that the speeders speed...Ch. 2 - (III) A runner hopes to complete the 10,000-m run...Ch. 2 - (III) Mary and Sally are in a fool race (Fig....Ch. 2 - (I) A stone is dropped from the top of a cliff. It...Ch. 2 - (I) If a car rolls gently (v0 = 0) off a vertical...Ch. 2 - (I) Estimate (a) how long it took King kong to...Ch. 2 - (II) A baseball is hit almost straight up into the...Ch. 2 - (II) A ball player catches a ball 3.2 s after...Ch. 2 - (II) A kangaroo jumps to a vertical height of 1.65...Ch. 2 - (II) The best rebounders in basketball have a...Ch. 2 - (II) A helicopter is ascending vertically with a...Ch. 2 - (II) For an object falling freely from rest, show...Ch. 2 - (II) A baseball is seen to pass upward by a window...Ch. 2 - (II) A rocket rises vertically, from rest, with an...Ch. 2 - (II) Roger sees water balloons fall past his...Ch. 2 - (II) A stone is thrown vertically upward with a...Ch. 2 - (II) A falling stone takes 0.33 s to travel past a...Ch. 2 - (II) Suppose you adjust your garden hose nozzle...Ch. 2 - (III) A toy rocket moving vertically upward passes...Ch. 2 - (III) A ball is dropped from the top of a...Ch. 2 - (III) A rock is dropped from a sea cliff and the...Ch. 2 - (III) A rock is thrown vertically upward with a...Ch. 2 - (II) Given v(t) = 25 + 18t, where v is in m/s and...Ch. 2 - (III) The acceleration of a particle is given by...Ch. 2 - (III) Air resistance acting on a falling body can...Ch. 2 - A fugitive tries to hop on a freight train...Ch. 2 - The acceleration due to gravity on the Moon is...Ch. 2 - A person jumps from a fourth-story window 15.0 m...Ch. 2 - A person who is properly restrained by an...Ch. 2 - Pelicans tuck their wings and free-fall straight...Ch. 2 - Suppose a car manufacturer tested its cars for...Ch. 2 - A stone is dropped from the roof of a high...Ch. 2 - A bicyclist in the Tour de France crests a...Ch. 2 - Consider the street pattern shown in Fig. 247....Ch. 2 - In putting, the force with which a golfer strikes...Ch. 2 - A robot used in a pharmacy picks up a medicine...Ch. 2 - A stone is thrown vertically upward with a speed...Ch. 2 - Figure 250 is a position versus time graph for the...Ch. 2 - In the design of a rapid transit system, it is...Ch. 2 - A person jumps off a diving board 4.0 m above the...Ch. 2 - Bill can throw a ball vertically at a speed 1.5...Ch. 2 - Sketch the v vs. t graph for the object whose...Ch. 2 - A person driving her car at 45 km/h approaches an...Ch. 2 - A car is behind a truck going 25 m/s on the...Ch. 2 - Agent Bond is standing on a bridge, 13m above the...Ch. 2 - A police car at rest, passed by a speeder...Ch. 2 - A fast-food restaurant uses a conveyor belt to...Ch. 2 - Two students are asked to find the height of a...Ch. 2 - Figure 252 shows the position vs. time graph for...Ch. 2 - You are traveling at a constant speed vM, and...Ch. 2 - (III) A lifeguard standing at the side of a...
Additional Science Textbook Solutions
Find more solutions based on key concepts
8. Two figure skaters, one weighing 625 N and the other 725 N, push off against each other on frictionless ice....
College Physics (10th Edition)
Using the definitions in Eqs. 1.1 and 1.4, and appropriate diagrams, show that the dot product and cross produc...
Introduction to Electrodynamics
Dipoles A and B are both located in the field of a point charge Q, as shown in Fig. 20.27. Does cither experien...
Essential University Physics (3rd Edition)
Suppose that the capacitance of a variable capacitor can be manually changed from 100 pF to 800 pF by turning a...
University Physics Volume 2
Calculate the average volume per molecule for an ideal gas at room temperature and atmospheric pressure. Then t...
An Introduction to Thermal Physics
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
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
- (I) A particle at is at and at t1=-2.0 s is at x1=4.8cm and at t2=4.5 s is at x2 = 8.5 cm. What is its average velocity over this time interval? Can you calculate its average speed from these data?Why or why not?arrow_forwardA sports car accelerates approximately as shown in the velocity-time graph of Fig. 2-43. (The short flat spots in the curve represent manual shifting of the gears.) Estimate the car's average acceleration in (a) second gear and (b) fourth gear. Plot the graph for this problem.arrow_forward4) It is known that from t = 2 s to t = 10 s the acceleration of a particle is inversely proportional to the cube of the time t. When t 2 s, v = -15 m/s, and when t 10s., v 0.36 m/s. Knowing that the particle is twice as far from the origin when t 2s as it is when t 10 s, determine (a) the position of the particle when t 2 s and when t = 10 s, (b) the total distance traveled by the particle from t 2 s to tt = 10 s.arrow_forward
- The acceleration of a particle is defined by the relation a= -k/v, where k is a constant. Since it is known that X=0 m and V=81 m/s at t=0 and V=36 m/s when X= 18 m; a) the velocity of the particle when X-20 m, b) Determine the time until the particle stops.arrow_forward14) If an object is thrown upward with an initial velocity of 80 ft/sec, its height after t sec is given byℎ(?) = 80? − 16?2 Find the maximum height attained by the object. (The object will attain maximumheight exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of theobject's flight, and the final time is when the object hits the ground.)A) 64 ftB) 84 ftC) 80 ftD) 100 ftarrow_forwardSketch a graph of acceleration versus time corresponding to the graph of velocity versus time given i (b)Identify the time or times ( ta, tb, tc, etc.) at which the acceleration is greatest. (c) At which times is it zero? (d) At which timesis it negative?arrow_forward
- In the design of a rapid transit system, it is necessary to balance the average speed of a train against the distance between station stops. The more stops there are, the slower the train’s average speed. To get an idea of this problem, calculate the time it takes a train to make a 15.0-km tripin two situations: (a) the stations at which the trains must stop are 3.0 km apart (a total of 6 stations, including those at the ends); and (b) the stations are 5.0 km apart (4 stationstotal). Assume that at each station the train accelerates at a rate of 1.1 m/s2until it reaches 95 km/h then stays atthis speed until its brakes are applied for arrival at the next station, at which time it decelerates at - 2.0 m/s2 Assume it stops at each intermediate station for 22 s.arrow_forward5) A man drops an apple from his car window while driving at 80 mph. (a) What are the initial x and y components of velocity? (b) What are the initial x and y components of acceleration?arrow_forward5) A rugby ball on Mars, where the acceleration due to gravity is 0.379g and air resistance is negligible, is hit directly upward and returns to the same level 9.25 sec later. (a) How fast was it moving just after being hit in ft/sec? (b) How high above its original point did the ball go just before it fell back in feet?arrow_forward
- A horse trots away from its trainer in a straight line, moving 38 m away in 9.0 s. It then turns abruptly and gallops halfway back in 1.8 s. Calculate (a) its average speed and (b) its average velocity for the entire trip, using “away from the trainer" as the positive direction.arrow_forwardA car is travelling at a constant speed of 100 km.hr at the highway when the driver noticed that the bridge 10 m away is cut off. If the driver immediately applied the brakes upon noticing the cut off bridge, what must be his deceleration so he would not fall to the river?arrow_forward(b) The speed of a train is reduced uniformly from 20 km/h to 10 km/h while travelling a distance of 80 m. (1) (ii) E (iv) Calculate the deceleration of the train. Assuming that the deceleration is constant, how much further will the train travel before coming to rest? Determine the total time taken for the train to come to rest from a speed of 20 km/h. Sketch the velocity versus time graph for the motion of the train.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY