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→Example Elastic Collision Calculations
| style="height:20px; width: 300px; text-align:center;" |A rubber ball of [[mass]] 0.5kg travels at a [[speed]] of 4m/s towards another rubber ball, of [[mass]] 0.2kg traveling in the opposite direction with a [[speed]] of 3m/s. The 0.5kg rubber ball stops completely. Calculate the [[velocity]] of the 0.2kg rubber ball after the collision.
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|[[File:CofMCalc3.png|center|200px300px]]|[[File:CofMCalc4.png|center|200px300px]]
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| style="height:20px; width: 300px; text-align:left;" |'''1. State the known quantities'''