A motor M is supplied with 4 hp of power and has an efficiency of 80%. The motor is used to lift a 320-lb object vertically with a cable as shown. If the motor winds the cable at a constant speed, what speed does the box ascend with? Neglect the mass of the pulley. a. 5.5 ft/s b. 8.59 ft/s c. 0.01 ft/s d. 6.88 ft/s e. None of the above
A motor M is supplied with 4 hp of power and has an efficiency of 80%. The motor is used to lift a 320-lb object vertically with a cable as shown. If the motor winds the cable at a constant speed, what speed does the box ascend with? Neglect the mass of the pulley. a. 5.5 ft/s b. 8.59 ft/s c. 0.01 ft/s d. 6.88 ft/s e. None of the above
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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
Transcribed Image Text:Not multiple choice, but still "all or nothing". The collar
at A is free to slide along the smooth shaft at B. The
frame is oriented in the vertical plane. An acceleration a
is applied to the frame, and the collar remains at a fixed
position relative to the shaft. Sketch the FBD and KD of
the collar.
pismb1000 lugn
Brod (4=115A
A motor M is supplied with 4 hp of power and has an
efficiency of 80%. The motor is used to lift a 320-lb
object vertically with a cable as shown. If the motor
winds the cable at a constant speed, what speed does the
box ascend with? Neglect the mass of the pulley.
5.5 ft/s
8.59 ft/s
c. 0.01 ft/s
d.
6.88 ft/s
e. None of the above
a.
b.
32016
B
ovoda
A
30°
M
fon
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