Q.

A body of mass I kg lies on smooth inclined plane. The block of mass m is acted upon by force F = l0 N horizontally as shown. The magnitude of net normal reaction on the block is:

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a

102 N

b

102N

c

10 N

d

none of these

answer is A.

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Detailed Solution

F.B.D. of block            N2 = F2+(mg)2{as there is no acceleration in the direction of N)N = 102 N
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A body of mass I kg lies on smooth inclined plane. The block of mass m is acted upon by force F = l0 N horizontally as shown. The magnitude of net normal reaction on the block is: