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zaxoanl

  • one year ago

A student throws a ball with a speed v=15m/s at the rear of the receding truck traveling 7m/s. If the collision is elastic and perpendicular to the surface of the truck , what will be the rebound velocity of the ball? answer is 1m/s but i don't know how to calculate it

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  1. anonymous
    • one year ago
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    @Michele_Laino help please

  2. Michele_Laino
    • one year ago
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    hint: since the collision is elastic, then the total kinetic energy is conserved, and the total momentum is also conserved

  3. anonymous
    • one year ago
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    what would be the formula we will use?

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