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Two blocks A and B of mass m and 2m are ...

Two blocks A and B of mass `m` and `2m` are connected together by a light spring of stiffness `k`. The system is lying on a smooth horizontal surface with block A in contact with a fixed vertical wall as shown in the figure. The block B is pressed towards the wall by a distance `x_0` and then released. There is not friction anywhere. If spring takes time `Deltat` to aquire its natural length then average force on the block A by the wall is

A

`sqrt(2/9K/m)(x_0)/(Deltat)`

B

`sqrt(K/(2m))x_0/(Deltat)`

C

`sqrt((2K)/(m))x_0/(Deltat)`

D

`sqrt((K)/(m))x_0/(Deltat)`

Text Solution

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The correct Answer is:
A
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