Question

A small car is sitting still in a parking lot. Unfortunately, a large truck is moving too fast, and accidentally crashes into the small car. They stick together and continue moving immediately after the crash. Assume that the engine of the truck dies just before the crash, and that the truck’s brakes also failed. Select all that are true for what happened just before the crash to immediately after the crash...

Answer Choice

	A.	The momentum of the car increased.
	B.	The momentum of the truck decreased.
	C.	The momentum of the car+truck decreased.
	D.	The momentum of the car+truck stayed the same.
	E.	The momentum of the car decreased.
	F.	The momentum of the car stayed the same.
	G.	The velocity of the truck increased.
	H.	The velocity of the truck stayed the same.
	I.	The velocity of the car stayed the same.
	J.	The velocity of the car increased.
	K.	The momentum of the truck stayed the same.
	L.	The velocity of the truck decreased.
	M.	The momentum of the truck increased.
	N.	The velocity of the car decreased.
	O.	The momentum of the car+truck increased.

Answer 1