A uniform rope of length L is lying in a lump on a frictionless table A small part - Physics - Work Energy and Power

Question

A uniform rope of length L is lying in a lump on a frictionless
table A small part of the rope is held hanging through a hole in
the table just below the lump The system is then released The speed
of the upper end of the rope as it leaves the hole is ??

Shobhit Mittal · Accepted Answer

Dear Student,

let the mass of the rope be M 
since the rope is inextensible the velocity of each point of rope will be same 
all the KE of the rope comes from the loss n potential energy 
KE=MgL2MgL2=Mv22v=gLRegards

A uniform rope of length L is lying in a lump on a frictionless table . A small part of the rope is held hanging through a hole in the table just below the lump . The system is then released . The speed of the upper end of the rope as it leaves the hole is ??