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Grade: 10
        
A uniform chain has a mass ‘m’ and length ‘L’. it is placed on a frictionless table with length ‘l’ hanging over the edge. The chain begins to slide down. Give the speed ‘v’  with which the chain slides away from edge.
2 years ago

Answers : (1)

Arun
23340 Points
							
Dear student
 
choosing zero potential energy at the horizontal level to be zero .Initial potential of the string is Ui=mghcentre of mass of the string=MLlo glo2=Mgl022LPotential energy when the string is about to leave =MgL2Kinetic energy with which it leaes the table  K=12Mv212Mv2MgL2=Mglo22Lv2gL=glo2Lv=g(Ll2oL)v=gL(L2l20
2 years ago
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