Question

Two equal bodies A and B of weight W each are placed on a rough inclined plane. The bodies
are connected by a light string. If μ(A) = 1/2 and μ(B) = 1/3, show that bodies will be on the point of motion when the plane is inclined at tan (5/12).
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Answer 1

Answer:

dude you can scan and solve

Answer 2

Answer:

As it is asked for the minimum force required to push the body up the incline plane. it must be equal to the net maximum force acting along the plane of incline

Explanation:

So from the free body diagram, net force along the incline surface is μmgcosθ−mgsinθ

So $$F >= μmgcosθ−mgsinθ$$

∴F  

min

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=μmgcosθ−mgsinθ