Question

calculate the work done in pulling a object with a constant force F as shown so that the block moves with a constant velocity through a distance d given that the ground is rough with coefficient of friction is miu

Answer 1

Answer:

The work done will be μmgdcosθ/cosθ+μsinθ

Explanation:

According to the problem the object is pulling with a constant force F.

The coefficient of the friction is μ

and d is the distance through which the block moves.

let the normal force be p to  balance the  forces

p+Fsinθ=mg

Fcosθ=μp

p=Fcosθ/μ

now from these equations:

Fcosθ/μ+Fsinθ=mg

F=μmg/cosθ+μsinθ

Let work done W

W=Fdcosθ

              =μmgdcosθ/ cosθ+μsinθ

Answer 2

Answer:

Explanation:

Here is the answer