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An electronic line judge camera captures the impact of a 57.0-g tennis ball traveling at 32.2 m/s with the side line of a tennis court. The
Question
An electronic line judge camera captures the impact of a 57.0-g tennis ball traveling at 32.2 m/s with the side line of a tennis court. The ball rebounds with a speed of 21.6 m/s and is seen to be in contact with the ground for 3.94 ms. What is the magnitude of the average acceleration of the ball during the time it is in contact with the ground
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Physics
3 years
2021-07-22T12:48:19+00:00
2021-07-22T12:48:19+00:00 1 Answers
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Answers ( )
Answer:
average acceleration is 1.365 ×
m/s²
Explanation:
given data
initila speed u = -32.2 m/s
final speed v = 21.6 m/s
time taken t = 0.00394 s
solution
we get here average acceleration that will be express as
v = u + at ……………………..1
put here value and we get
21.6 = -32.2 + a × 0.00394
solve it we get
a = 1.365 ×
m/s²
so average acceleration is 1.365 ×
m/s²