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29 September, 09:53

The mass of the rock is 1220 kg. It had 400 J of potential energy when it rolled down the hill. calculate the heihht.

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  1. 29 September, 11:24
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    potential is equal to mgh

    we know that mass = 1220 kg

    g=9.8 0r 10

    400=1220*9.8*x

    400=11956x

    x=400/11956
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