A ball A of mass 0.25 kg moving on a smooth horizontal table with a ve – McqOptions

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1.	A ball A of mass 0.25 kg moving on a smooth horizontal table with a velocity of 10 m/s strikes an identical stationary ball B on the table. If the impact is perfectly elastic, the velocity of the ball B just after the impact will be
A.	2.5 m/s
B.	zero
C.	5 m/s
D.	10 m/s
E.	107 dynes
Answer» D. 10 m/s

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