A crane does 62,500 joules of work to lift a boulder a distance of 25.0 meters. How much did the boulder 

weigh?

Verified Answer :

naǫ

\(W=Fs \\ F=\frac{W}{s}\)
W - work
F - weight
s - distance

\(W=62 500 \ J = 62 500 \ N \cdot m \\ s=25 \ m \\ \\ F=\frac{62500 \ N \cdot m}{25 \ m}=2500 \ N\)

The boulder weighed 2500 newtons.