A trolley bus whose mass is 104 kg takes 10 s to reach a speed of 8
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A trolley bus whose mass is 104 kg takes 10 s to reach a speed of 8 m/s starting from rest. It operates from a 5-kV overhead power line and is 50 percent efficient. What is the average current drawn by the bus during the acceleration? (First calculate the final KE of the bus.)
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