27. A 48 kg student runs down the sidewalk and jumps with a horizontal speed of 3.8 m/s onto a stationary skateboard. The student and the skateboard move down the sidewalk with a speed of 3.9 m/s. Find the mass of the skateboard.

Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 10P: The magnitude of the net force exerted in the x direction on a 2.50-kg particle varies in time as...
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27. A 48 kg student runs down the sidewalk and jumps with a horizontal speed of 3.8
m/s onto a stationary skateboard. The student and the skateboard move down the
sidewalk with a speed of 3.9 m/s. Find the mass of the skateboard.
28. In problem 27, how fast the student would have to run initially to have a final speed
of 4.9 m/s?
29. A 0.6 kg ball is thrown with a velocity of 18 m/s to the right. A stationary receiver
catches the ball and brings it to rest in 0.03 s. What is the force exerted on the ball by
the receiver?
Transcribed Image Text:27. A 48 kg student runs down the sidewalk and jumps with a horizontal speed of 3.8 m/s onto a stationary skateboard. The student and the skateboard move down the sidewalk with a speed of 3.9 m/s. Find the mass of the skateboard. 28. In problem 27, how fast the student would have to run initially to have a final speed of 4.9 m/s? 29. A 0.6 kg ball is thrown with a velocity of 18 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.03 s. What is the force exerted on the ball by the receiver?
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