Work Energy And Power Question 275

Question: An escalator has 2400 W of power available to move passengers from the first floor of a mall to the second, 6.0 m vertically. If the average mass of the passengers is 65 kg, what is the maximum number of passengers that can be carried to the second floor in 1.0 minute?

Options:

A) 4

B) 5

C) 22

D) 37

Show Answer

Answer:

Correct Answer: D

Solution:

[d] $ Pt=nmgh $

$ 2400( 60 )=n( 65 )( 9.8 )( 6 ); n=37 $



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