A massive ball moving with speed v collides with a tiny ball by negligible mass. The collision is elastic. Find the speed with which the second tiny ball will move.

A massive ball moving with speed v collides with a tiny ball by neglig

1.	A massive ball moving with speed v collides with a tiny ball by negligible mass. The collision is elastic. Find the speed with which the second tiny ball will move.
Answer» Solution :`V_2= (2(m_1u_1))/((m_1 + m_2))` Since `m_1 > > m_2, (m_1 + m_2) = m_1` or `v_2 = (2m_1v)/(m_1) = 2v` `:.` SNEED of second tiny BALL = 2v.