Ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball on the table. If the impact is perfectly elastic, the velocity of the ball just after impact would be

Ball of mass 250 g moving on a smooth horizontal table with a velocit

1.	Ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball on the table. If the impact is perfectly elastic, the velocity of the ball just after impact would be
A.	zero
B.	5 m/sec
C.	10 m/sec
D.	none of these.
Answer» D. none of these.

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A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball on the table. If the impact is perfectly plastic, the velocity of the ball just after impact would be

Ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball on the table. If the impact is perfectly elastic, the velocity of the ball just after impact would be

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