Question

a box of mass 40kg is been drag along the floor by a rope inclined at 60degree to the horizontal, the frictional force between the box and the floor is 100N and the tension of the rope is 300N how much work is done in dragging the box through a distance of 4m​

Answer 1

Hopefully this is correct:

Given: m=40kg θ=60 to the horizontal

Ff to floor is 100N and Tension=300N

Find Work:

Given:

`W=fd`

Where f= net force applied parallel to the block: Use cos(60)

=300cos(60)-100=50(4)=200J work