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A block of mass 5 kg is placed on a plan...

A block of mass 5 kg is placed on a plank of mass 10 kg which is placed on the smooth horizontal surface as shown in figure. If a 100 N force is applied on the plank then the acceleration of the plank wrt ground is (Coefficient of friction between block and plank `mu_s= mu_k=0.4` and `g = 10 m/s^2`)

A

`- ( 1)/(2) mv_(0)^(2)`

B

`- ( mv_(0)^(2))/(36)`

C

zero

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
D
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