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OpenStudy (anonymous):
A car moving with a velocity of 20 meters/second has 1.8 * 105 joules of kinetic energy. What is the mass of the car
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OpenStudy (anonymous):
wat is formuila for kinetic energy of a body?
OpenStudy (anonymous):
KE = (1/2) M V^2. M = 2*KE/V^2. M = 2*1.8*105/20^2 J/(m^2/s^2) = 2*1.8*1.05/400 kg = 0.00945 kg.
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