Question

a bag of rice weighs 75 kg calculate the height to which it should be raised so that its potential energy is 7500 J​

Answer 1

Explanation:

We know that P.E.=mgh

So, ATQ

75*9.8*h=7500

h=7500/(75*9.8)

h=7500/735

h=10.204m (approx.)

Answer 2

Explanation:

potential energy = 7500 J

mgh=7500

75*9.8*h=7500

9.8*h=100

h=1000\98

10.20m