Question

58800J energy is utilized in lifting a mass of 50 kg. Find out the height to which the mass was lifted.(Given, g = 9.8m/s2)

Answer 1

We know that

Potential energy = mgh

58800J=50×9.8×h

58800/490=h

Therefore,

h=120m

Answer 2

Given,

Potential Energy ( P.E) = 58800 J

Mass = 50 kg

Acceleration due to Gravity = 9.8 m/s^2


Potential Energy = mgh

=> 58800 = 50 x 9.8 x h

=> 58800 = 490 h

=> 490 h = 58800

=> h = 58800/490

=> h = 120 m


So the Height = h = 120 m