Question

The ball hits a wall with a velocity of 30ms-1 and rebounces with the same Velocity. What is the change in its velocity

Answer 1

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THE BALL DOESN'T CHANGES IT'S MAGNITUDE OF VELOCITY, IT'S ONLY CHANGING DIRECTION OF VELOCITY.

FOR EXAMPLE IF THE BALL IS MOVING WITH VELOCITY 5î THEN VELOCITY AFTER BOUNCING WOULD BE -5î

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