Physics
Force and Momentum
Relate force to rate of change of momentum.
F = dp / dt
Formula Explanation
Newton’s second law can also be written in terms of momentum.
Variables Explained
F = force; p = momentum; t = time.
Solved Example
Momentum changes by 20 kg m/s in 4 s. Find force.
F = 20 / 4 = 5 N.