c 60 2 A body of mass m kg is lifted by a man to a height of

Last updated: 6/7/2023

c 60 2 A body of mass m kg is lifted by a man to a height of h m in 30 s Another man lifts the same mass to the same height in 60 s The work done by them are in the ratio a 1 2 c 2 1 yo b 1 1 d 4 1 20 load on his head climbs up 20