A man of mass 60kg climbs up a 20m long staircase to the top of building 10m high. What is the work done by him
2 answers:
Answer:
mass=60kg
h=20m
g=10m/s²
here the work done by the body is equal to its potential energy
work done=P.E.
As we know that P.E.=mgh
putting values
P.E.=60kg×20m×10m/s²
P.E.=1200kgm×10m/s²
P.E.=12000Nm
so the work done by the body is 12000Nm
Work done by hi
should be 12000Nm i’m pretty sure
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