Question

It took 150 joules to lift a rock 1.5 meters into the air. How much force did it take to left the rock?

Answer 1

Hi there!

We can use the equation:

$\large\boxed{{W = F \cdot d}}$

W = Work (J)

F = Force (N)

d = displacement (m)

We can rearrange to solve for force:

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

Plug in the givens:

$F = \frac{150}{1.5} = \boxed{100N}$