(a)[2]
Determine the speed of the joined particle after the collision.
(b)[3]
Determine the loss in the system's kinetic energy caused by the collision.
Mathematics 9709 · AS & A Level · Momentum
Momentum — practice question
A particle $B$ with mass $5\,\text{kg}$ is initially stationary on a smooth horizontal table. A particle $A$ with mass $2.5\,\text{kg}$ travels along the table at $6\,\text{m s}^{-1}$ and strikes $B$ head-on. During the collision, the two particles join together.
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