The elevator in a building is rated for a maximum load of 500 lbm at a rate of 3.0 m/s. What size electric motor should you specify to be able to handle this load (hp)? Number hp
Added by Wendy J.
Close
Step 1
First, we need to convert the maximum load from pounds to kilograms, as the metric system is commonly used in physics calculations. 1 lb is approximately equal to 0.4536 kg. So, the maximum load in kilograms would be: 500 lb * 0.4536 kg/lb = 226.8 kg Show more…
Show all steps
Your feedback will help us improve your experience
David Morabito and 78 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
6. The load lifted by an elevator weighs 10 tons and must be lifted through the height of 60 feet within a time of 40 seconds. Determine the minimum nominal power that the motor must have on its data plate. Give answer in HP.
Madhur L.
A lift has mass $600 \mathrm{~kg}$, not including passengers. The lift is designed to ascend, at constant speed, a vertical distance of $20.0 \mathrm{~m}$ (five floors) in $16.0 \mathrm{~s}$, and it is driven by a motor that can provide up to $30 \mathrm{~kW}$ to the lift. What is the maximum number of passengers that can ride in the lift? Assume that an average passenger has mass $65.0 \mathrm{~kg}$.
An electric motor is rated to have a maximum power output of 0.75 hp. If this motor is being used to lift a crate of mass $200 \mathrm{kg}$, how fast (i.e., at what speed) can it lift the crate? Hint: Assume the only other force on the crate is the force of gravity.
Work and Energy
Power
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD