# About 40 J is required to push a crate 4 m across a floor. If the push is in the same direction as the motion of the crate, what is the force on the crate?

Dec 4, 2015

I found $F = 10 N$
$W = \vec{F} \cdot \vec{d} = F \cdot d \cdot \cos \left(\theta\right) =$
$40 = F \cdot 4$
$F = \frac{40}{4} = 10 N$