Question

A machine which is 75% efficient, uses 12 J of
energy in liſting 1 kg mass through a certain
distance. The mass is then allowed to fall through
the same distance, the velocity at the end of its
fall is :
(1) V.2 m/s (2) 118 m/s
(3) 24 m/s
(4) 132 m/s​

Answer 1

Answer:

118 is the write answer this question