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

•P.E.- The energy possessed by an object due to its height.

•P.E.=mgh

•m= 60 kg

h= 4 m

g =10 m/s2

As P.E.= mgh, putting the given values,we get

P.E. = 60×10×4=2400 J