For work to be performed, energy must be …. Choose one or more correct alternatives.Ī. Thus, they are perpendicular to each other.Ģ. Its displacement is along the tangent to the circle.In uniform circular motion, the force acting on an object is along the radius of the circle.Why is the work done on an object moving with uniform circular motion zero? Thus, if an object has no momentum then it cannot possess kinetic energy.į.Now K.E = ~ mv2, So if v = 0 then K.E also will be zero.If it is zero, it implies that v = 0 (since mass can never be zero). Momentum is the product of mass and velocity.
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