Question

All the formula included in the Lesson Laws of mation

Answer 1

momentum ,p = mass × velocity
force,F = mass × acceleration
1 Newton = 1 kg m s^-2
m1 v1 + m2 v2 = m1 u1 + m2 u2
Recoil velocity, v2 = - m1 v1 / m2
that's all