How much work is done on a body of mass 10 kg whirling on a circular pàth of radius 5m?
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Zero work is done here because the angle between force ( towards the radius) and displacement ( tangential) is always 90° ( as tangent is always prependicular on radius) so work done is zero as cos(90) = 0
as W = FScos(theta)
as cos( 90)= 0
therefore W = 0
@_@
as W = FScos(theta)
as cos( 90)= 0
therefore W = 0
@_@
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