1.

A body moving along the x-axis of a Co-ordinate system is subject to a constant face F given by F (2i+j+4k) N, what is the work done by this force in moving the body through a distance of2 m along the x axis?

Answer»

work done = F x s=2 *2answer 4J

f=2why??

because F acts on all 3 axis while s is acting only along X axis that is why we consider the force only along the axis in which we are given the distance



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