Recent content by omgplshelpme

ok i have calculated the momentum of both cars and the momentum before the collision is greater then the momentum after the collision, have i done something wrong? momentum before is suppose to equal momentum after ah I am so confused

there is a car crash where car A is resting at the traffic lights and car B is driving at 100km/hr and at 45m saw the car and stepped on the brakes. the velocity of car B is 27.8m/s the deceleration is -6.7 m s^-2 the thinking distance is 41.7m weight of car B is 1385 kg weight of car...