A rigid body moves a distance of 10 m along a straight line under the action of a force of 5N.if the work done by this force on the body is 25 j ,the angle which the force makes with the direction of motion of the body is
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workdone=F×s×cos
25 =5×10×cos
cos=60 degree
25 =5×10×cos
cos=60 degree
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