Question

5. Calculate the height through which a body of mass
0.5 kg is lifted if the energy spent in doing so is 1.0 J.
Take g = 10 m s2. ​

Answer 1

Answer:

Mass = 0.5 kg

Energy = 1 J

Gravitational potential energy = mgh 1 = 0.5 × 10 × h 1 = 5h

Height, h = 0.2 m

Answer 2

P. E = mgh

1 = 0.5 x 10 x h

1 = 5 x h

h= 1/5

h =0.2m