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anonymous

  • one year ago

a 10.0 kg ball falling at 10.0 m/s hits a mattress and comes to a complete stop in 0.5 s. What force does the mattress exert to stop the ball? A. 10 N B. 20 N C. 100 N D. 200 N @michele_laino :)

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  1. Michele_Laino
    • one year ago
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    here we have to apply the theorem of the Impulse of a Force F. So we can write this: \[\Large F\Delta t = mv\] and then: \[\Large F = \frac{{mv}}{{\Delta t}} = \frac{{10 \times 10}}{{0.5}} = ...Newtons\]

  2. anonymous
    • one year ago
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    ok! so we get 200! so 200 N is our solutoin?

  3. Michele_Laino
    • one year ago
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    yes! that's right!

  4. anonymous
    • one year ago
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    yay!! :) thanks!

  5. Michele_Laino
    • one year ago
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    :)

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