3. A batter hits a baseball with mass 0.145 kg straight upward with initial speed of 24.0 m/s. (a) How much work has gravity done on the baseball at a height of 20.0 m above the bat? (b) Use work-energy theorem to calculate the speed of the baseball at a height of 20.0 m above the bat. (c) Does your answer to part (b) depend on whether the baseball depend on whether the baseball is moving upward or downward at a height of 20.0 m? Explain.
3. A batter hits a baseball with mass 0.145 kg straight upward with initial speed of 24.0 m/s. (a) How much work has gravity done on the baseball at a height of 20.0 m above the bat? (b) Use work-energy theorem to calculate the speed of the baseball at a height of 20.0 m above the bat. (c) Does your answer to part (b) depend on whether the baseball depend on whether the baseball is moving upward or downward at a height of 20.0 m? Explain.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Answer for number 3
![3. A batter hits a baseball with mass 0.145 kg straight upward with initial speed of 24.0 m/s. (a)
How much work has gravity done on the baseball at a height of 20.0 m above the bat? (b)
Use work-energy theorem to calculate the speed of the baseball at a height of 20.0 m above
the bat. (c) Does your answer to part (b) depend on whether the baseball depend on whether
the baseball is moving upward or downward at a height of 20.0 m? Explain.
4. A 5.00 kg block is moving at v, = 6.00 m/s along a
frictionless, horizontal surface toward a spring with
6.00 m/s
= 500 N/m
force constant k = 500 that is attached to a wall.
т
The spring has negligible mass.
(a) Find the maximum distance the spring will be
compressed?
(b) If the spring is to compress by no more than
0.150 m, what should the maximum value of v,?
5.00
kg](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F138a2c8a-0441-488c-9d1a-8d78275d7458%2F6fa00a36-914b-4621-a9fd-70293b272afd%2Fozp7teh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A batter hits a baseball with mass 0.145 kg straight upward with initial speed of 24.0 m/s. (a)
How much work has gravity done on the baseball at a height of 20.0 m above the bat? (b)
Use work-energy theorem to calculate the speed of the baseball at a height of 20.0 m above
the bat. (c) Does your answer to part (b) depend on whether the baseball depend on whether
the baseball is moving upward or downward at a height of 20.0 m? Explain.
4. A 5.00 kg block is moving at v, = 6.00 m/s along a
frictionless, horizontal surface toward a spring with
6.00 m/s
= 500 N/m
force constant k = 500 that is attached to a wall.
т
The spring has negligible mass.
(a) Find the maximum distance the spring will be
compressed?
(b) If the spring is to compress by no more than
0.150 m, what should the maximum value of v,?
5.00
kg
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