Q. 475.0( 11 Votes )
How much is the mass of a man if he has to do 2500 joules of work is climbing a tree 5 m tall? (g = 10 m s2)
Work done in climbing, w = 2500J
Acceleration due to gravity (g) = 10m/s2
Height above the ground = 5m
W = mgh
= 2500/10 × 5
Hence, Mass of the man = 50 kg
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