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(a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp = 746 W) to reach a speed of 15.0 m/ s, neglecting friction? (b) How long will this acceleration take if the car also climbs a 3.00-m-high hill in the process?
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Final Answer
  1. $3.2\textrm{ s}$
  2. $4.0\textrm{ s}$
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OpenStax College Physics Solution, Chapter 7, Problem 38 (Problems & Exercises) (4:57)

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