2. Your 300 kg rocket car gets a constant force from its rocket to accelerate it...

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2. Your 300 kg rocket car gets a constant force from its rocket to accelerate it at 4 m/s for 10 seconds. How much energy is transferred by work in this process? Neglect friction from wheels and air resistance. Answer in kJ. Answer: less than 250. Hint: there is more than one valid approach to calculate the energy transfer in this problem. One is much easier than the other.

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