Question

Define potential Energy. Write expression for Potential Energy possessed by a body lifted to

certain height ‘h’. A person of 60kg climbs a stair case and reaches to a height of 4m.

Calculate the potential energy acquired by the person. (take g = 10m/s2​

Answer 1

Explanation:

Potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors

e = mgh

e = 10*60*4= 2400J = 2.4kJ

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Answer 2

Answer:

The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

Potential energy = mgh

potential energy acquired by the person = mgh

m = 60kg

h = 4 m

g = 10 m/s²

P.E = mgh

      = 60 kg × 10 m/s² × 4 m

      = 2400 J