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Calculating power output of a car

  1. 1.)what is the power output of a 1200kg car that can go from 25 km/hr to 100 km/hr in 12 secs. Neglecting air resistance and rolling friction.

    2.)a woman skis down a slope 300ft high. her speed at the foot of the slope is 60 ft/sec. what percentage of her initial potential energy was dissipated?
     
  2. jcsd
  3. cmon show how you attempted the problem.
     
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