Questions
A uniform chain of mass ‘m’ and length l is on a table with of its length hanging freely from the edge of the table. The amount of work done is dragging the chain on to the table completely is
detailed solution
Correct option is C
Wext+Wgr=ΔK.E=0Wext=−Wgr=−−ΔV=ΔV⇒Wext=Vf−ViWe also know V=mglCOMSo,Vi=−m4.g.l8=−mgl32Vf=0Wext=mgl32Talk to our academic expert!
Similar Questions
A bucket of mass ‘m’ tied to a light rope is lowered at a constant acceleration of ‘g/4’. If the bucket is lowered by a distance ‘d’, the work done by the rope will be (neglect the mass of the rope)
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