Question

A block of mass 4 kg connected to a fixed point by a light spring of
K= 100 N/m, is at rest. The pulley is massless and frictionless.
The block is pulled down by a distance 60 cm and released. Then, The velocity of the block when it comes back to its initial position of equilibrium is
(A) 3.6 m/s
(B) 4 m/s
(C) 3 m/s
(D) 2.8 m/s​

Answer 1

Answer:

wrong question