题目内容（请给出正确答案）

[主观题]

Two masses collide and stick together. Before the collision one of the masses was at rest. Is there a situation in which the kinetic energy is conserved in such a collision？

A、Yes, if the less massive particle is the one initially at rest.

B、Yes, if the more massive particle is the one initially at rest.

C、Yes, if the two particles have the same mass.

D、No, kinetic energy is always lost is such a collision.

提问人：网友hzb2925 发布时间：2022-01-07

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