0 0 votes A small ball of mass $1$ $kg$ moving with a velocity of $12$ $m/s$ undergoes a direct central impact with a stationary ball of mass $2$ $kg$. The impact is perfectly elastic. The speed (in $m/s$) of $2$ $kg$ mass ball after the impact will be ____________ Applied Mechanics and Design gateme-2015-set2 numerical-answers theory-of-mechanics applied-mechanics-and-design + – ♦Arjun 162 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.