A body is being raised to a height h from the surface of earth what is the sign of work done by
Answers
Given : A body is being raised to a height h from the surface of earth
To Find : what is the sign of work done by
Applied force
Gravitational force
Solution:
sign of work done by Applied force = +ve
sign of work done by Gravitational force = -ve
Applied force to do work is taken as +ve
Applied force is in upward direction
But gravitational force is in downward direction
Hence work done by gravitational force wil be taken as - ve
A body is being raised to a height h from the surface of earth then sign of work done by gravitational force is -ve
and sign of work done by Applied force = +ve
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