Two cars suffer a head-on collision. What is conserved in the collision?
A) mechanical energy and momentum
B) momentum
C) (Neither energy nor momentum is conserved.)
D) kinetic energy

Question

Quizplus · Accepted Answer

In a head-on collision, momentum is conserved assuming no external forces act on the system, but mechanical energy is not necessarily conserved due to energy conversion into other forms, such as heat and sound.

Two Cars Suffer a Head-On Collision