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The ball A collides elastically with an identical ball B with a speed v. The ball B touches another identical ball C.The velocity of C,after the impact,is equal to a.v b.v/2 c.v/4 d.none of these

The ball A collides elastically with an identical ball B  with a speed v. The ball B touches another identical ball C.The velocity of C,after the impact,is equal to


a.v


b.v/2


c.v/4


d.none of these

Grade:12th Pass

2 Answers

saiharsha vaddempudi
30 Points
10 years ago

the velocity of c is v because the masses of the three  balls  are same , therefore the the velocities are transfered . so the correct option is A

Swapnil Saxena
102 Points
10 years ago

The answer is v (a.)

Solution: When a body collides elastically with an another body, the two intechanges their velocities.

In this case body A moving with velocity v collides with an another body B at rest , as such after the collison the two balls interchange their velocites and B starts moving with velocity v and A comes to rest.

Similar case happens when body B collides with body C. The two interchange their velocites and C began to move with a velocity equal to v and body B comes to rest

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