Question

A frontend loader did 1250 joules of work to lift a rock by applying 150 N force. How far was the rock lifted?

• A. 9.3 m
• B. 10.3 m
• C. 8.3 m
• D. 5.3 m

Answer 1

The correct option is C

8.3 m

Work done = force $\times$ displacement

Here, Work done=1250 J and force applied = 150 N.

1250 = 150 $\times$ displacement

$\text{Displacement}=\frac{1250}{150}=\text{8.33 m}$

Thus, the rock was lifted through a distance of 8.33 metres.