Question -
Answer -
Massof each ball = 0.05 kg
Initialvelocity of each ball = 6 m/s
Magnitude of the initial momentum of eachball,┬аpi┬а= 0.3 kg m/s
Aftercollision, the balls change their directions of motion without changing themagnitudes of their velocity.
Final momentum of each ball,┬аpf┬а=тАУ0.3 kg m/s
Impulseimparted to each ball = Change in the momentum of the system
=┬аpf┬атАУ┬аpi
=тАУ0.3 тАУ 0.3 = тАУ0.6 kg m/s
Thenegative sign indicates that the impulses imparted to the balls are opposite indirection.