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A Ball Hits a Wall Horizontally at 6.0 M S-1. It Rebounds Horizontally at 4.4 M S-1. the Ball is in Contact with the Wall for 0.040 S. What is the Acceleration of the Ball ? - CBSE Class 9 - Science

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Question

A ball hits a wall horizontally at 6.0 m s-1. It rebounds horizontally at 4.4 m s-1. The ball is in contact with the wall for 0.040 s. What is the acceleration of the ball ?

Solution

We have to find the value of uniform acceleration.
We have:
Initial velocity (u) = 6 m/s
Final velocity is in opposite direction to that of initial velocity (v) = –4.4 m/s
Time taken (t) = 0.04 s
Acceleration :
`a = "υ-u"/t`
Put the values in the above equation to get the value of acceleration . 
`a = "-4.4-6"/0.04`
= `10.4/0.04`
= `-260  "m/s"^2`

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Solution A Ball Hits a Wall Horizontally at 6.0 M S-1. It Rebounds Horizontally at 4.4 M S-1. the Ball is in Contact with the Wall for 0.040 S. What is the Acceleration of the Ball ? Concept: Measuring the Rate of Motion - Speed with Direction.
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