Q Consider the situation shown in figure Initially the spring is unstretched when the system is released from - Physics - Work Energy And Power

Question

Q Consider the situation shown in figure Initially the spring is
unstretched when the system is released from rest Assuming no
friction in the pulley, the maximum elongation of the spring
is

Shobhit Mittal · Accepted Answer

Dear Student,

let the mass m get down by height h and stop 
this loss in potential enrgy will store in PE of the spring since if the block moves h down then spring also stretch by length h mgh=kh22h=2mgk  maximum elongation 
Regards

Q. Consider the situation shown in figure. Initially the spring is unstretched when the system is released from rest. Assuming no friction in the pulley, the maximum elongation of the spring is