Question

holaaaaaa guys ~♥~♡♥♡♥♡♥♡~♥~♥♡~♥~

what is the correct answer Of the above question? ​

Answer 1

Solution :-

It's provided that body of mass M us kept on an inclined plane with friction co-efficient = μ

Now As the body is kept on the inclined plane , it will have two components of gravitational force .

One acting normally to the inclined plane.

One acting parallel to the inclined plane.

The force acting normally to the inclined plane will be mg Cos∅

The force acting Parallely to the inclined plane will be mg Sin∅

( Please consider attachment of the answer)

Now

Let the minimum force required to pull the body up be "F"

Now from the FBD attached in the attachment .

Force F = μΝ + mg Sin∅

Now

N = Normal = mg Cos∅

Then

F = μ ( mg Cos∅) + mg Sin∅

F = μ mg Cos∅ + mg Sin∅