Question

A pair of bullocks exert a force of $140N$ on a plough through distance of $15m$. The work done by the bullocks is:

• A. $280J$
• B. $1400J$
• C. $2100J$
• D. $21000J$

Answer 1

The correct option is C

$2100J$

Step 1: Given data

Given that:

Force, $F=140N$

Displacement, $s=15m$

Work done, $W=?$ (to be calculated)

Step 2; Calculating the work done

Work done$\left(W\right)$= Force$\left(F\right)$$\times$Displacement$\left(s\right)$

$$\begin{gathered} W=F\times s \\ W=140N\times 15m=2100J \\ \therefore W=2100J \end{gathered}$$

Hence, the correct answer is option (C).