How do you calculate velocity from momentum?

Use the momentum formula rearranged:

v = p/m

where p is momentum (in kg·m/s) and m is mass (in kg). This is one of the simplest velocity calculations.

Remember:

• Momentum = mass × velocity, so velocity = momentum ÷ mass
• Both momentum and velocity are vectors (have direction)
• Units must be consistent: if p is in kg·m/s and m in kg, v will be in m/s

Example: A 60 kg person with momentum of 180 kg·m/s has velocity = 180 / 60 = 3 m/s.