211 (S07) Exam #2a - MC

211 (S07) Exam #2a - MC - Multiple Choice10Questions Please...

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Multiple Choice –  10 Questions                   x 2pts =                  Please write your answers in the space provided. # correct score 1. If you stand on a spring scale in your bathroom at home, it reads 600 N, which means your mass is 60 kg. If instead you stand on the scale while moving down and slowing down with acceleration 2 m/s 2 downward in an elevator, how many newtons would it read? A. 1200 N B. 720 N C. 600 N D. 480 N E. 120 N 2. A 400 kg car moving  at 30 m/s  breaks to a stop in 100 meters.  The average   frictional force (in Newtons) acting on the car is: A. 120 B. 400 C. 1200 D. 1800 E. 12000 3. If a 60-kg sprinter can accelerate from a standing start to a speed of 10 m/s in 2 s, what average power is generated? A. 600 W B. 1200 W C. 1500 W D. 3000 W 4. A car speeds up at a constant rate of 4 m/s 2 . An identical car takes a right turn with 4 m radius at constant speed of 8 m/s. Which of the following statements is correct?
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211 (S07) Exam #2a - MC - Multiple Choice10Questions Please...

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