Question

(11) To lift a 5 kg mass to a certain height, amount
of energy spent is 245j
The mass was raised to
a height of (g = 9.8 m/s’)
(A) 15 m (B) 10 m (C) 7.5 m
(D) 5 m​

Answer 1

E=mgh

h=E/mg

h=245/49=5m.

Answer 2

Answer:

energy= mgh

H is not given

H=E/mg

H=245/9

H= 7.5 m