Question

A work of $10J$ is done in moving a body through $1m$, in the direction of the applied force. Calculate the magnitude of the applied force.

Answer 1

Step 1: Given data

Work done, $W=10J$

Displacement, $s=1m$

The magnitude of force, $F=?$(to be calculated)

Step 2: Calculating the magnitude of applied force

$Workdone\left(W\right)=force\left(F\right)\times displacement\left(s\right)$

$$\begin{gathered} W=F\times s \\ 10J=F\times 1m \\ \therefore F=10N \end{gathered}$$

Hence, the magnitude of the applied force is $10N$.