Answer :The Momentum of a man riding his bicycle downhill is 400 kg m/s.
Explanation:
Mass of the man of bicycle = 40 kg
Velocity of the bicycle = 10 m/s
Momentum = Mass Ă— Â Velocity = 40 kg Ă— 10 m/s = 400 kg m/s
The Momentum of a man riding his bicycle downhill is 400 kg m/s.