Question

Two billiard balls each of mass 0.05 kg moving in opposite directions with speed 6 m s⁻¹ collide and rebound with the same speed. What is the impulse imparted to each ball due to the other?

Answer 1

Hii dear,

# Answer-
I1 = -0.6 kgm/s.
I2 = 0.6 kgm/s

# Given-
m = 0.05 kg
u1 = 6 m/s
u2 = -6 m/s
v1 = -6 m/s
v2 = 6 m/s

# Solution-
Suppose two bodies with mass m collide with each other at velocities u1 & u2, and their resultant velocities are v1 & v2.

a) For ball m1-
Impulse = mv1 - mu1
Impulse = 0.05(-6-6)
Impulse = -0.6 kgm/s

b) For ball m2-
Impulse = mv2 - mu2
Impulse = 0.05(6+6)
Impulse = 0.6 kgm/s

Hope that solved your problem...