1.) A 5kg object accelerated at a constant speed of 9m/s2. Estimate the net force needed to accelerate the object.
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2.) What is the KE of a 2700 kg car going northeast at the speed of 29m/s?
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3.) A 2 kg hammer is in the upward direction of 0.6 m. What is the PE?
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Answer:
1. 202.5 (J)
2. 1135350 (J)
3. 0.36 (J)