Question

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

Answer 1

The energy possessed in this situation is potential energy.

Potential energy = mass× gravity × height

Mass = 20kg

gravity = 10m/s^2

height = 10m

P.E = 20×10×10

= 2000J

The energy possessed is 2000 J

Hope it helps;)

Answer 2

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