Question

Calculate the energy possessed by a stone of mass 20kg kept at a height of 10m.(Given g=10m/s^2)​

Answer 1

Answer:

2 KJ

Explanation:

The formula for potential energy depends on the force acting on the two objects.

P.E. = mgh

where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

Given,

mass of the stone,m = 20 kg

height of the stone,h = 10 m

acceleration due to gravity,g=10m/s^2

Soln:

potential energy of the stone = P.E. = mgh = 20*10*10

potential energy of the stone =2000 J = 2 KJ