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4 September, 12:21

A bobsleigh with four people on board has a total mass of 610 kg. How fast is the sleigh moving if it has a kinetic energy of 40.0 kJ?

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  1. 4 September, 12:35
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    40 kj to j is 40000 j, we know that KE = (1/2) mv², therefore v=√2K/m, therefore v=√2*40000j/610kg, v=11.5 m/s
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