Solution Found!
The 50-lb load is hoisted by the pulley system and motor M. If the motor exerts a
Chapter 14, Problem R14-6(choose chapter or problem)
The 50-lb load is hoisted by the pulley system and motor M. If the motor exerts a constant force of 30 lb on the cable, determine the power that must be supplied to the motor if the load has been hoisted s = 10 ft starting from rest. The motor has an efficiency of \(\varepsilon = 0.76\).
Questions & Answers
QUESTION:
The 50-lb load is hoisted by the pulley system and motor M. If the motor exerts a constant force of 30 lb on the cable, determine the power that must be supplied to the motor if the load has been hoisted s = 10 ft starting from rest. The motor has an efficiency of \(\varepsilon = 0.76\).
ANSWER:
Step 1 of 5
Mass of the crate, .
Speed,
Distance arise,
The motor has an efficiency e = 0.74.
The motor exerts a constant force of T=30 lb