Question

if 58,800j of energy is consumed for lifting an object through a vertical height of 75m. calculate the mass of the object. (g=9.8m/s)​

Answer 1

Potential energy=mgh

58800=m*9.8*75

m=58800/9.8*75

m=80 kg

hope it will help you

Answer 2

Since the object is been lifted, gravitational potential energy is acting on it.

Gravitational potential energy (or P.E)= mgh

$58800= m*9.8*75$

$m= \frac{58800}{75*9.8}$

$m= \frac{784}{9.8}$

$m= 80kg$