▼ Part A-Power supplied to the crate when friction is considered Considering the coefficient of kinetic friction, μ = 0.15, determine the power that the motor must supply to the crate the instant the crate travels a distance of 4.1 m Express your answer to two significant figures and include the appropriate units. View Available Hint(s) μA P= Value Submit → 12 μA Units ? Part B - Power supplied to the motor when efficiency is considered If the motor has an efficiency of e = 0.86, what power must be supplied to the motor to raise the crate? Express your answer to two significant figures and include the appropriate units. View Available Hint(s) = ?

▼ Part A-Power supplied to the crate when friction is considered Considering the coefficient of kinetic friction, μ = 0.15, determine the power that the motor must supply to the crate the instant the crate travels a distance of 4.1 m Express your answer to two significant figures and include the appropriate units. View Available Hint(s) μA P= Value Submit → 12 μA Units ? Part B - Power supplied to the motor when efficiency is considered If the motor has an efficiency of e = 0.86, what power must be supplied to the motor to raise the crate? Express your answer to two significant figures and include the appropriate units. View Available Hint(s) = ?

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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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

Learning Goal:
As shown, a 55 kg crate is pulled up a 0 = 65° incline by a pulley
and motor system. Initially at rest, the crate is pulled s = 4.1 m up
along the incline. Undergoing constant acceleration, the crate reaches
a speed of 2.5 m/s at the instant it has traveled this distance. (Figure
Figure
98°F
Sunny
8
1 of 1

Y Part A - Power supplied to the crate when friction is considered
μA
P= Value
Submit
Considering the coefficient of kinetic friction, μ = 0.15, determine the power that the motor must supply to the crate the instant the crate travels a distance of 4.1 m
Express your answer to two significant figures and include the appropriate units.
View Available Hint(s)
1 →
μÀ
Units
Part B - Power supplied to the motor when efficiency is considered
If the motor has an efficiency of ε = 0.86, what power must be supplied to the motor to raise the crate?
Express your answer to two significant figures and include the appropriate units.
View Available Hint(s)
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6/25/2022
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