Question

In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is: 1. 80 N2. 400 N3. C 320 N4. 5.0 N5. 4.0 N

Answer 1

We are asked to determine the force given the distance and the work. To do that we will use the following formula:

$W=Fd$

Where:

$\begin{gathered} W=\text{ work} \\ F=\text{ force} \\ d=\text{ distance} \end{gathered}$

Now, we solve for the force by dividing both sides by "d":

$\frac{W}{d}=F$

Now, we plug in the values:

$\frac{40J}{8m}=F$

Solving the operations:

$5N=F$

Therefore, the average force is 5N.