two rubber balls collide in a collision, one ball has a mass of 2 kg and has a velocity of 6m/s due east. the other ball has a mass of 6 kg and is traveling behind the other ball at a velocity of 8 m/sec due east. after the collision, the 6 kg ball slows down to 7 m/sec . find the velocity of the 2 kg ball after the collision

Question

two  rubber balls collide in a collision, one ball has a mass of 2 kg and has a velocity of 6m/s due east. the other ball has a mass of 6 kg and is traveling behind the other ball at a velocity of 8 m/sec due east. after the collision, the 6 kg ball slows down to 7 m/sec . find the velocity of the 2 kg ball after the collision

anonymous · Answer

use momentum conservation 
mv+mv=mv+mv
2(6)+6(8)=6(7)+2(x)
Solve for x

anonymous · Answer

thanks
@cherio12