Two identical spheres A and B collide with tw | vedclass

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(C) In an elastic collision between two identical masses where one is at rest,the moving mass comes to rest and the stationary mass moves with the ini

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$C$ will remain at rest and $D$ will move with velocity $v$.

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(C) In an elastic collision between two identical masses where one is at rest,the moving mass comes to rest and the stationary mass moves with the initial velocity of the moving mass.Initially,$B$ collides with $C$. Since they are identical and $C$ is at rest,$B$ comes to rest and $C$ starts moving with velocity $v$.Then,$C$ collides with $D$. $C$ comes to rest and $D$ moves with velocity $v$.Meanwhile,$A$ collides with the now stationary $B$. $A$ comes to rest and $B$ starts moving with velocity $v$.Finally,$B$ collides with the stationary $C$. $B$ comes to rest and $C$ moves with velocity $v$.Thus,after all collisions,$A$ and $B$ are at rest,while $C$ is at rest and $D$ moves with velocity $v$.

Two identical spheres $A$ and $B$ collide with two other identical spheres $C$ and $D$ with the same velocity $v$. What happens after the collision?

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