Question

A man of mass 60kg climbs up a 20m long stair case
to the top of a building 10m high. What is the work
done by him? Take g = 10ms-2.
a) 52 KJ
b) 6 KJ
c) 3 KJ
d) None of the above

Answer 1

Answer:

c

Explanation:

Answer 2

Answer:

B Work done Potential energy mgh; that is W = 60 × 60 × 10 = 6000J or 6kJ

Explanation:

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