Posted by jerry on Monday, October 12, 2009 at 7:34pm.
Divide change in potential energy by the power of the motor.
change in potential energy divided by the power. ( 1 W = 1 J/s)
Initial potential energy= mass* g* height
= mass * g*0
= 0
Final potential energy = mass* g* 16.0
finf diffence between final and initial and divide by Power. Answer will be in seconds(s)
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