The mass of heavy spring is m_0. Its ends are projected in opposite direction with speed v_0. Find the initial kinetic energy of the spring.

Q: The mass of heavy spring is m0 . Its ends are projected in opposite direction with speed v0. Find the initial kinetic energy of the spring.

(a) $\frac{1}{2}m_0 v_0^2$

(b) $\frac{m_0}{6} v_0^2$

(c) $2 m_0 v_0^2$

(d) $\frac{1}{3} m_0 v_0^2$

Ans: (c)