Question

A wheel of mass 38 kg is lifted to a height of 0.8 m. How much gravitational potential energy is added to the wheel? Acceleration due to gravity is g = 9.8 m/s2.

Answer 1

Answer:

GPE=m.g.h=38×0.8×9.8=297.92 J

Answer 2

Answer:

Gravitational potential energy, E = 297.92 J

Explanation:

Mass of the wheel, m = 38 kg

Height, h = 0.8 m

The gravitational potential energy is said to be possessed by an object due to its height above ground surface. Mathematically, it is given by :

$E=mgh$

g is the acceleration due to gravity

$E=38\times 9.8\times 0.8$

E = 297.92 Joules

So, the gravitational potential energy added to the wheel is 297.92 Joules. Hence, this is the required solution.