# Physics

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A 0.24-kg object traveling rightward at 3.5 m/s collides head-on and elastically with a 0.40-kg object traveling leftward at 2.1 m/s. (a) what are their velocities after collision? (b) If the objects are in contact for 0.010 s during collision, what is the magnitude of the average forcethey exert on each other?

• Physics -

Use the conservation ofmomentum to solve for one veloicty in terms of the other. then put that into the conservation of energy equation.

• Physics -

Thanks

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