boy weighting 30 kg is riding a bicycle weighting 50 kilograms if the bycycle is moving at a speed of 90 kilometres per hour towards the west find the linear momentum of the bycycle boy system in s i units

Answer 1

Momentum=total mass*velocity change km/hr to m/s

90km/hr*(1hr/3600s)*1000m/1km= 90/3.6 m/s

check my thinking

Answer 2

200 kgm/s