JEE Main & Advanced
JEE Main Paper (Held On 12 April 2014)
question_answer
A spring of unstretched length l has a mass m with one end fixed to a rigid support. Assuming spring to be made of a uniform wire, the kinetic energy possessed by it if its free end is pulled with uniform velocity v is:
[JEE Main Online Paper ( Held On 12 Apirl 2014 )