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1. The large wheels on the train have a mass of 0.5 kg, while the small wheels have a mass of 0.15 kg. The train body, and child, have a total mass of 40 kg. If the large wheel is rotating at 3 m/s, determine the total kinetic energy of the train.

Sagot :

jerin212223

Answer: 60.975 Joules  

KE = 1/2 mv^2  

=> 1/2 * 40.65 * 3  

=> 60.975 J

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