Question

A ball hits a wall with a velocity of 30m/s and rebounes with the same velocity. what is the change in its velocity​

Answer 1

The magnitude of change in velocity of the ball is 60 m/s

We have,

A ball hits a wall with a speed of 30 m/s and rebounds with same velocity. We can say that initial velocity is 30 m/s and when it rebounds its direction changes i.e. final velocity is (-30 m/s). The change in velocity is given by final velocity minus initial velocity as

So, the magnitude of change in velocity of the ball is 60 m/s.

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Answer 2

Answer:

The magnitude of change in velocity of the ball is 60 m/s

We have,

A ball hits a wall with a speed of 30 m/s and rebounds with same velocity. We can say that initial velocity is 30 m/s and when it rebounds its direction changes i.e. final velocity is (-30 m/s). The change in velocity is given by final velocity minus initial velocity as

So, the magnitude of change in velocity of

the ball is 60 m/s.

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