A motor raises an elevator weighing 5000 N a distance of 8 meters in 20 s. What is the work done by the motor, the power of the motor in Watts, and the horsepower of the motor?

1 Answer
marfre
Jun 3, 2018

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Explanation:

Given: #5000# N, distance of #8# m, in #20# s#

#"[Work](https://socratic.org/physics/work-and-energy/work)" = "Force" xx "distance" = 5000 xx 8 #

# "Work" = 40,000 N*m = 40,000 # Joules

#"[Power](https://socratic.org/physics/work-and-energy/power)" = "Work"/"Time" = 40,000/20 = 2000 # Watts

#1 " hp" = 745.699872 " Watts"#

#2000 " Watts" = 2000/745.699872 ~~ 2.7 # hp

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