Question

in force work power energy and machine two bodies A and B of equal mass are kept at height 20 and 30 m respectively calculate the ratio of their potential energy​

Answer 1

let equal masses of A&B =m

height of A=20m

height of B= 30m

potential energy of A = mgh

p.e=m(10)(20)

p.e A=200m

potential energy of B=mgh

p.e=m(10)(30)

p.eB=300m

ratio of p.eA&p.eB=200m/300m

ratio=2/3

ratio=2:3