Momentum=total mass*velocity change km/hr to m/s
90km/hr*(1hr/3600s)*1000m/1km= 90/3.6 m/s
check my thinking
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
2 answers
200 kgm/s