PDF chapter test TRY NOW
Take a ball and place it on a level surface as you did in Activity
Make the ball move by giving it a push. Now place the ruler from your geometry box in its path as shown in the below diagram. In doing so, you would apply a force on the moving ball. Does the ball continue to move in the same direction after it strikes the ruler? Repeat the activity and try to obstruct the moving ball by placing the ruler such that it makes different angles to its path. In each case note your observations about the direction of motion of the ball after it strikes the ruler.
The ball strikes the ruler and then changes .
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