Question

Sarah uses an inclined plant to load a chest into her truck. If she does 84 Joules of work, and the inclined plane is 3 meters long, how much force does she expend?(1 point)
Responses

252 N
252 N

28 N
28 N

87 N
87 N

81 N

Answer 1

To find the force exerted by Sarah while using the inclined plane, we can use the work equation:

\[
\text{Work} = \text{Force} \times \text{Distance}
\]

Rearranging this equation to solve for force gives us:

\[
\text{Force} = \frac{\text{Work}}{\text{Distance}}
\]

Given that the work done is 84 Joules and the distance of the inclined plane is 3 meters, we can substitute these values into the equation:

\[
\text{Force} = \frac{84 \, \text{J}}{3 \, \text{m}}
\]

Now, calculate the force:

\[
\text{Force} = 28 \, \text{N}
\]

So, the correct answer is **28 N**.