A uniform disc of mass m and radius R is held by two strings S and S of same length e as shown in figure Young s modulus and

Question

A uniform disc of mass m and radius R is held by two strings S and S of same length e as shown in figure Young s modulus and cross sectional area of both strings are Y and A Then A In equilibrium extension in the string S is mge 2YA B Immediately after cutting the string S extension in the string S is mgl 3YA C Immediately after cutting the string S extension in the string S is mg YA 5 m g e D Magnitude of change in elastic potential energy in string S is 72 YA S r

Kunduz · Accepted Answer

Click to see the answer