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calculating power output of a car

 
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Oct3-10, 02:34 AM   #1
 

calculating power output of a car


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?
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Oct3-10, 02:39 AM   #2
 
cmon show how you attempted the problem.
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