In a row of five identical steel spheres suspended so that they just touch one another
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum
Problem
In a row of five identical steel spheres suspended so that they just touch one another, the first sphere is lifted and allowed to strike the second. Immediately after impact only the last sphere in the row swings out with almost the same speed while the three middle spheres remain nearly at rest. Explain briefly why this happens.