Question

A machine applied a force of $100N$ to move a rock. How far is the rock moved if the work done by the machine is $1250J$

• A. $12$ $m$
• B. $13.5$ $m$
• C. $15$ $m$
• D. $12.5$ $m$

Answer 1

The correct option is D $12.5$ $m$

Given:
Force = $100N$
Work done = $1250J$
Work done = Force $\times$ Displacement
$1250$ = $100$ $\times$ Displacement
Displacement = $\frac{1250}{100}$ = $12.5m$
Thus, the rock will moved by a distance of $12.5metres$.