On an air table, a 3.0 kg puck moving east at 4.0 m/s collides with a 2.0 kg puck moving north at 5.0 m/s, and they stick. How fast do they move together?

PhysicsHardHigh School (11–12)Mechanics › Momentum and Collisions

On an air table, a $3.0\ \text{kg}$ puck moving east at $4.0\ \text{m/s}$ collides with a $2.0\ \text{kg}$ puck moving north at $5.0\ \text{m/s}$ , and they stick. How fast do they move together?

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