Question

A 60 kg sprinter has a momentum of +600 kg-m/s when he crosses the finish

Answer 1

Answer:

10 ms⁻¹

Explanation:

The amount of momentum that an object has is dependent upon two factors

• mass of the moving object  
• speed of motion

In terms of an equation,

Momentum (P) = Mass(m)×velocity(v)

                     P = m×v

                 600 = 60 × v ⇒ v = 10 ms⁻¹