Posted by Luricela on .
Squaw Valley ski area in California claims that its lifts can move 48700 people per hour. If the average lift carries people about 185 m (vertically) higher, estimate the maximum total power needed. (Assume an average mass per person of 70 kg.)

Physics 11th grade 
drwls,
Power is the rate of doing work.
The work associated with taking an average person to the top is M g H = 70*9.8*185 = ___ Joules.
Multiply that by the number of people carried per SECOND. The answer will be in Watts.