College Physics (10th Edition)
College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 2, Problem 10MCP

A cat runs in a straight line. Figure 2.39 shows a graph of the cat’s position as a function of time. Which of the following statements about the cat’s motion must be true? (There may be more than one correct choice.)

Chapter 2, Problem 10MCP, A cat runs in a straight line. Figure 2.39 shows a graph of the cats position as a function of time.

Figure 2.39

Multiple-Choice Problem 10.

  1. A.    At point c, the cat has returned to the place where it started.
  2. B.     The cat’s speed is zero at points a and c.
  3. C.     The cat’s velocity is zero at point b.
  4. D.    The cat reverses the direction of its velocity at point b.
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Situation 01. Samantha has a height of 1.83 meters measured from the ground surface. She then lifts a rock and throw it straight upward giving it an upward acceleration coming from rest of 35.0 m/s? for 64cm. The ball was released 2.20m above the ground. a. How high above the ground does the rock go? b. Compute the time she must get out of its way before it returns exactly at her height.
Hand written solutions are strictly prohibited.
Suppose a rock is launched from the ground straight upward (use up as the positive direction) and reaches its maximum height in a time of 3.0 s. Then the rock descends back to the ground. (To simplify your numbers, you may use |g| = 10 m/s².) Find the following: a. The maximum height reached above the ground. b. The velocity of the rock at the time t = 4.5 s.

Chapter 2 Solutions

College Physics (10th Edition)

Ch. 2 - If the graph of the velocity of an object as a...Ch. 2 - Figure 2.31 shows graphs of the positions of three...Ch. 2 - Figure 2.32 shows graphs of the velocities of...Ch. 2 - Figure 2.33 shows the graph of an objects position...Ch. 2 - Figure 2.3 shows the graph of an objects velocity...Ch. 2 - Figure 2.35 shows the position x of an object as a...Ch. 2 - Figure 2.36 shows the velocity of an object Ux as...Ch. 2 - A ball is dropped from rest from the top of a...Ch. 2 - Which of the following statements about average...Ch. 2 - A ball is thrown directly upward with a velocity...Ch. 2 - Two objects start at the same place at the same...Ch. 2 - An object starts from rest and accelerates...Ch. 2 - If a car moving at 80 mi/h takes 400 ft to stop...Ch. 2 - Figure 2.38 shows the velocity of a jogger as a...Ch. 2 - A certain airport runway of length L allows planes...Ch. 2 - A ball rolls off a horizontal shelf a height h...Ch. 2 - A frog leaps vertically into the air and...Ch. 2 - A cat runs in a straight line. Figure 2.39 shows a...Ch. 2 - A wildebeest is running in a straight line, which...Ch. 2 - A bullet is dropped into a river from a very high...Ch. 2 - An ant is crawling along a straight wire, which we...Ch. 2 - || A person is walking briskly in a straight line,...Ch. 2 - A dog runs from points A to B to C in 3.0 s. (See...Ch. 2 - || BIO Figure 2.44 shows the position of a moving...Ch. 2 - || An object moves along the x axis. Figure 2.45...Ch. 2 - || A boulder starting from rest rolls down a hill...Ch. 2 - || Each graph in Figure 2.47 shows the position of...Ch. 2 - Family trip. You and your family take a trip to...Ch. 2 - Hypersonic scramjet. On March 27, 2004, the United...Ch. 2 - Plate tectonics. The earths crust is broken up...Ch. 2 - A runner covers one lap of a circular track 40.0 m...Ch. 2 - At room temperature, sound travels at a speed of...Ch. 2 - BIO Ouch! 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A jet fighter pilot wishes to...Ch. 2 - A car is traveling at 60 mi/h down a highway. (a)...Ch. 2 - BIO If a pilot accelerates at more than 4g, he...Ch. 2 - || BIO Air-bag injuries. During an auto accident,...Ch. 2 - Starting from rest, a boulder rolls down a hill...Ch. 2 - Faster than a speeding bullet! The Beretta Model...Ch. 2 - Electric drag racer. An electric drag racer is...Ch. 2 - The reaction time of the average automobile driver...Ch. 2 - According to recent typical test data, a Ford...Ch. 2 - A car sitting at a red light begins to accelerate...Ch. 2 - If the radius of a circle of area A and...Ch. 2 - In the redesign of a machine, a metal cubical part...Ch. 2 - You have two cylindrical tanks. The tank with the...Ch. 2 - Prob. 42PCh. 2 - Two rockets having the same acceleration start...Ch. 2 - The drivers of two cars having equal speeds hit...Ch. 2 - Two bicyclists start a sprint from rest, each...Ch. 2 - (a) If a flea can jump straight up to a height of...Ch. 2 - A brick is released with no initial speed from the...Ch. 2 - Worlds tallest building. Suppose that you drop a...Ch. 2 - A tennis ball on Mars, where the acceleration due...Ch. 2 - Measuring g. One way to measure g on another...Ch. 2 - Thats a lot of hot air! A hot-air balloonist,...Ch. 2 - Astronauts on the moon. Astronauts on our moon...Ch. 2 - A student throws a water balloon vertically...Ch. 2 - A rock is thrown vertically upward with a speed of...Ch. 2 - BIO Physiological effects of large acceleration....Ch. 2 - Two stones are thrown vertically upward from the...Ch. 2 - Two coconuts fall freely from rest at the same...Ch. 2 - A Toyota Prius driving north at 65 mi/h and a VW...Ch. 2 - You are driving eastbound on the interstate at 70...Ch. 2 - A helicopter 8.50 m above the ground and...Ch. 2 - || A jetliner has a cruising air speed of 600 mi/h...Ch. 2 - || At the instant the traffic light turns green,...Ch. 2 - || A state trooper is traveling down the...Ch. 2 - Two rocks are thrown directly upward with the same...Ch. 2 - BIO Prevention of hip fractures. Falls resulting...Ch. 2 - || Egg drop. You are on the roof of the physics...Ch. 2 - || Galileos marbles. Galileo used marbles rolling...Ch. 2 - A large boulder is ejected vertically upward from...Ch. 2 - A car is traveling in the negative x direction at...Ch. 2 - Bio A healthy heart pumping at a rate of 72 beats...Ch. 2 - A car in the northbound lane s sitting at a red...Ch. 2 - A rocket blasts off vertically from rest on the...Ch. 2 - BIO An elite human sorinter reaches his top speed...Ch. 2 - || How high is the cliff? Suppose you are climbing...Ch. 2 - BIO Blood flow in the heart. The human circulatory...Ch. 2 - BIO Blood flow in the heart. The human circulatory...Ch. 2 - BIO Blood flow in the heart. The human circulatory...
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Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY