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A block B of mass 5kg is placed on a sla...

A block B of mass 5kg is placed on a slab A of mass 20kg which lies on a frictionless surface as shown in the figure. The coefficient of static friction between the block and the slab is 0.4 and that of kinetic friction is 0.2. If a force F = 25N acts on B, the acceleration of the slab will be:

A

`0.4 ms^(-2)`

B

`0.5 ms^(-2)`

C

`1 ms^(-2)`

D

zero

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The correct Answer is:
C
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