Question

How much work does it take to raise a `9 kg` weight `15 m`?

Answer 1

L=1323 J

Explanation:

the work made to give the potential energy is like the final potential energy
`Ew = m xx g xx h = 9 kg xx 9,8 m/s^2 xx 15 m= 1323 J`
Work is also calculated by the moltiplication of weight force by displacement
`L= F xx s = (m xx g) xx h = 1323 J`