Problem 4 (practice): A mad scientist considers creating a roller coaster which would use a uniform electric field to accelerate the roller coaster cars at the start of the ride. One coaster car has a mass of 250 kg, and the scientist manages to place 0.003 C of charge on it. How strong of an electric field would they need in order to get the coaster to go from rest to a speed of 17 m/s within a distance of 20 meters?
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