Question

A child raised a book of a mass
250 gram to the top of a table of height 1 m find the magnitude of work done by the child agnist the gravitational force
( g=10 m/s²)​

Answer 1

2.5J

Given m=250gram

m =0.25kg

h=1m

g=10m/S2

W=mgh

W= 0.25×10×1

W= 2.5 J

2.5J is the amount of work done to raise book of mass 250gram through height 1m