Question

A racquetball strikes a wall with a speed of 30 m/s and rebounds with a speed of 26 m/s. The collision takes 20ms. What is the average acceleration of the ball during collision? a) 62 b) 50 c) 66 d) 54 e) 58

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asked 2020-12-15
A racquetball strikes a wall with a speed of 30 m/s and rebounds with a speed of 26 m/s. The collision takes 20ms. What is the average acceleration of the ball during collision?
a) 62
b) 50
c) 66
d) 54
e) 58

Answers (1)

2020-12-16

image
The negative acceleration implies the force acting was opposite to the direction of motion
Non of the choices seem correct

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