Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
4th Edition
ISBN: 9780133953145
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 84EAP
A rubber ball is shot straight up from the ground with speed v0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest.
a. At what height above the ground do the balls collide? Your answer will be an algebraic expression in terms of h, v0, and g.
b. What is the maximum value of h for which a collision occurs before the first ball falls back to the ground?
c. For what value of h does the collision occur at the instant when the first ball is at its highest point?
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A rubber ball is shot straight up from the ground with
speed vo. Simultaneously, a second rubber ball at
height h directly above the first ball is dropped from rest.
At what height above the ground do the balls collide? Your answer will be a symbolic expression in terms of vo, h, and g.
What is the maximum value of h for which a collision occurs before the first ball falls back to the ground?
1. I drop a ball from height h above the ground. At the same time, my friend, standing directlybelow on the ground, throw a second ball upwards with speed v0. The two balls collideat the moment when the second ball (the ball that my friend threw) is instantaneously atrest.(a) Did I throw the ball, or did I just release it? (b) At what height did the collision take place? (c) A wise old man tells you that if two rubbery balls of equal mass collide, with one ballat rest, the velocity of the first ball just after the collision is the same as the velocityof the second ball just before the collision (and vice versa). Sketch the distancebetween the two balls as a function of time after the collision (until one of the ballsreaches the ground).
A student, standing on the roof of a 30.0m talldorm building releases from rest a 200-grams apple to the ground. Another student in her bedroom, sees the apple past her window and notices that the apple strikes the ground after 0.600 s.
a)What is the total time of flight of the apple (from the time it was released, until it hits the ground)?
b)What is the speed of the apple just before it hits the ground?
c)What is the heightofthe student’s window?
d)What is the speed of the apple when it passes by the student’s window?
Chapter 2 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - For Questions 1 through 3, interpret the position...Ch. 2 - FIGURE Q2.4 shows a position-versus-time graph for...Ch. 2 - FIGURE Q2.5 shows a position-versus-time graph for...Ch. 2 - FIGURE Q2.6 shows the position-versus-time graph...Ch. 2 - FIGURE Q2.7 shows the position-versus-time graph...Ch. 2 - FIGURE Q2.8 shows six frames from the motion...Ch. 2 - You’re driving along the highway at a steady speed...Ch. 2 - A bicycle is traveling east. Can its acceleration...
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