University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter10: Nuclear Physics
Section: Chapter Questions
Problem 10.6CYU: Check Your Understanding Where does the energy from the Sun originate?
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As shown in the figure (Figure 1), a superball with mass m equal to 50 grams is dropped from a height of hi=1.5m . It collides with a table, then bounces up to a height of hf=1.0m . The duration of the collision (the time during which the superball is in contact with the table) is tc=15ms . In this problem, take the positive y direction to be upward, and use g=9.8m/s2 for the magnitude of the acceleration due to gravity. Neglect air resistance.
Find Jy, the y component of the impulse imparted to the ball during the collision.
Express your answer numerically, to two significant figures.
Find the y component of the time-averaged force Favg,y, in newtons, that the table exerts on the ball.
Find Kafter−Kbefore, the change in the kinetic energy of the ball during the collision, in joules.
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