Six identical balls are lined in a straight groove made on a horizontal frictionless surface as shown. Two similar balls each moving with a velocity $v$ collide elastically with the row of $6$ balls from left. What will happen
Six identical balls are lined in a straight groove made on a horizontal frictionless surface as shown. Two similar balls each moving with a velocity $v$ collide elastically with the row of $6$ balls from left. What will happen
- A
One ball from the right rolls out with a speed $2v$ and the remaining balls will remain at rest
- B
Two balls from the right roll out with speed $v$ each and the remaining balls will remain stationary
- C
All the six balls in the row will roll out with speed $v/6$ each and the two colliding balls will come to rest
- D
The colliding balls will come to rest and no ball rolls out from right
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