Work, Energy,& Power #4: Power
Define: Power

 

Give the equation for power.
 
 

Identify the variables and give the units of each.
 
 

Explain the concept of power by using the words energy, time, and power?
 
 
 

A 50.0 kg student is pulled 5.00 m up a rope at a constant speed of 1.25 m/s.  How much power does the motor use in raising the student?  (Yes, this is a two-part problem.)
 
 
 
 
 
 
 

The same 50.0 kg student climbs up a rope at a constant speed.
a) If the studentís power output is 200.0 W, how long does it take the student to climb the rope?
 
 
 
 

b) How much work does the student do?
 
 
 


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