# physics

A body of mass 5kg moving with a speed of 3m/s collides head on with a body of mass 3kg moving in the opposite direction at speed of 2m/s The first body stops after the collision The final velocity of the second body is
Ans:3m/s

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2. 👎 0
3. 👁 89
1. system momentum is conserved

(5 * 3) - (3 * 2) = 3 * v

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2. 👎 0
posted by Scott
2. 3m/s

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2. 👎 0
posted by Ernest

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