Question

A block of 15 kg is kept on the frictionless horizontal
surface as shown in figure. What is the value of normal
reaction force applied by the surface on the block, if a
horizontal force of 80 N acts on the block (g = 10 m/s)
(A) 80 N
(B) 95 N
(C) 150 N
(D) zero
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Answer 1

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