23-02-2016
Chemistry

contestada

A 4 kg rock is rolling 10 m/s. Find its kinetic energy

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Аноним Аноним

24-02-2016

KE = 1/2mv^2
KE = 1/2(4)*10 m/s^2
KE = 2 * 10
KE = 20 joules

Answer: 20 joules

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