Question

A ramp is used to lift a refrigerator a height of 12 m with a force of 110 N. The ramp is at an angle of 50° to the ground.How much work is being done

Answer 1

Answer:

848.5 J

Explanation:

We are given that

Height,h=12 m

Force,F=110 N

$\theta=50^{\circ}$

We have to find the work done .

We know that

Work done,W=$Fscos\theta$

Using the formula

W=$110\times 12cos50$

W=848.5 J

Hence,the work done=848.5 J