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A block of mass 4kg is placed in contact...

A block of mass 4kg is placed in contact with the front vertical surface of a lorry. The coefficient of friction between the vertical surface and block is 0.8. The lorry is moving with an acceleration of `15 m//s^(2)(g=10 ms^(-2))`. The force of friction between lorry and block is

A

48 N

B

24 N

C

40 N

D

Zero

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The correct Answer is:
C
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