Question

A small ball with a mass of 0.6 kg and a velocity of 12 m/s hits another ball with the same mass. The first ball stops moving, and the second ball then moves forward and hits a third ball with a mass of 0.2 kg. If the system is closed, what is the velocity of the third ball? (1 point)
Responses

30 m/s
30 m/s

1.44 m/s
1.44 m/s

36 m/s
36 m/s

4 m/s
what the answer

Answer 1

The correct answer is 4 m/s.