Wed January 16, 2013 By:

A force of 10N acting on a body at an angle of 60 degree with a horizontal direction displaces the body through a distance of 2m along the surface of a floor.calculate the work done.Now if the angle 30 degree with the horizontal what is the value of force to displace body through 2m along the surface of floor

Expert Reply
Thu January 17, 2013
work done=Fscos?=10x2 cos60=10 J
in the second case=10=Fx2 cos 30=Fxroot 3
F=10/root 3 Newton
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