What is waters freezing point? What is Magnesium and Ammonias freezing point?
a 500 kg truck moving at 30 m/s strikes a parked 300 kg car. They connect together and move forward.
What kinda of collision is this?
What is the momentum of the truk before it strikes the car?
What is the speed of the car and truck as they movie forward (connected together ) after collision?