A man weighing 80 kg carries a stone of 20 kg to the top of the building 30 m high. The work done by him is (g = 9.8 m/s
Posted: Mon Dec 13, 2021 6:36 am
A man weighing 80 kg carries a stone of 20 kg to the top of the building 30 m high. The work done by him is (g = 9.8 m/s2)
(A)80 J (B) 100 J (C) 980 J (D) 29,400 J
(A)80 J (B) 100 J (C) 980 J (D) 29,400 J