Question

A book of mass 100grm raised to the top of a table height 1m within 10s.Find the power required

Answer 1

Explanation:

m=100g=0.1kg

g=10/ms

2

h=1m

w=mgh

=0.1×10×1=1J

1 J is the amount of work done to raise a body of mass 100 g through a height of 1 m.