Chapter 9, Problem 34A

Calculate the work done when a 20-N force pushes a cart 3.5 m.

To determine

Work done in pushing a cart.

Answer to Problem 34A

Work done will be, $W=70\text{ J}$

Explanation of Solution

Given :

Force applied, $F=20\text{ N}$

Distance traveled, $s=3.5\text{ m}$

Formula used :

  $W=Fs$

Where, W is work done, F is applied force and s is distance traveled.

Calculation :

Now, substituting the value of F and s and solve.

  $\begin{array}{l}W=20\times 3.5\\ =70\text{ J}\end{array}$

Conclusion :

Therefore, work done will be equal to 70 J.