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10 June, 19:46

A car of mass 2400kg moving at 20 m/s slams into a cement wall and comes to a halt?

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  1. 10 June, 19:51
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    Impulse = change in momentum

    The car's momentum was (mass) x (speed)

    Momentum = (2400 kg) x (20 m/s)

    Momentum = 48,000 km-m/s

    To completely stop the car, the impulse = - 48,000 km-m/s.
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