Question

two balls each of mass 50 grams moving in opposite direction with speed of 6ms- colloid and rebounces with a same speed. the impulse imparted to each ball due to other is

Answer 1

mass of each ball=50g=50/1000=0.05kg

initial velocity=16m/s

Iniial momentum=P1=mxu

=16x0.05

=0.8kgm/s

After collision, the direction of velocity of each ball is reversed on rebounding.

Final momentum=P2

=m(-v)

=0.05x(-16)

= -0.8kgm/s

Impulse imparted= Change in momentum of each ball

= -0.8-(0.8)

= -0.16kgm/s

∴Impulse imparted due to one ball after collision on another would be -0.16kgm/s

Hope this answer helps you