Momentum
{"name":"Momentum", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"A car is moving at a velocity of 100m\/s and its mass is 900 kg. With 2 (average) people, it's mass increases to 1000kg. What is the momentum of the car when there are 4 people in the car?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}