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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Chapter 11, Problem 52EAP
A 1500 kg weather rocket accelerates upward at 10 m/s2. It explodes 2.0 s after liftoff and breaks into two fragments, one twice as massive as the other. Photos reveal that the lighter fragment traveled straight up and reached a maximum height of 530 m. What were the speed and direction of the heavier fragment just after the explosion?
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A 1500 kg weather rocket accelerates upward at 10m/s2. It explodes 1.8 s after liftoff and breaks into two fragments, one twice as massive as the other. Photos reveal that the lighter fragment traveled straight up and reached a maximum height of 510 m .
What was the speed of the heavier fragment just after the explosion?
Express your answer using two significant figures.
What was the direction of the heavier fragment just after the explosion?
1. upward OR
2. downward
a)If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward?
Express your answer numerically in meters per second.
b)
If the ball hits Olaf and bounces off his chest horizontally at 8.30 m/sm/s in the opposite direction, what is his speed vf after the collision?
Express your answer numerically in meters per second.
Consider the collision pictured below. While m2 = 10kg is initially at rest, horizontally moving mị = 6kg with a speed of v1 = 11.8m/s collides with it. After the
collision, the two masses scatter with speeds of v, = 7.8m/s and v,. If 01 = 48°, determine the speed of m2 after the collision, v, =?. Express your answer in
units of m/s with one decimal place.
Note: Please note that we do not know whether or not this is an elastic collision.
Just before the collisbn
Just after the collision
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Answer:
Chapter 11 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)
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