Learning Goal: To use the principle of work and energy to determine characteristics of a mass being pulled up an incline and determine the power that must be supplied to the system when the efficiency of the input system is considered. As shown, a 58 kg crate is pulled up a 0 = 65° incline by a pulley and motor system. Initially at rest, the crate is pulled s = 3.1 m up along the incline. Undergoing constant acceleration, the crate reaches a speed of 2.7 m/s at the instant it has traveled this distance. (Figure 1) Figure 1 of 1 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 3.1 m Express your answer to two significant figures and include the appropriate units. ► View Available Hint(s) P = Submit Di μA Value Units ? Part B - Power supplied to the motor when efficiency is considered If the motor has an efficiency of = 0.88, what power must be supplied to the motor to raise the crate? Express your answer to two significant figures and include the appropriate units.

Learning Goal: To use the principle of work and energy to determine characteristics of a mass being pulled up an incline and determine the power that must be supplied to the system when the efficiency of the input system is considered. As shown, a 58 kg crate is pulled up a 0 = 65° incline by a pulley and motor system. Initially at rest, the crate is pulled s = 3.1 m up along the incline. Undergoing constant acceleration, the crate reaches a speed of 2.7 m/s at the instant it has traveled this distance. (Figure 1) Figure 1 of 1 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 3.1 m Express your answer to two significant figures and include the appropriate units. ► View Available Hint(s) P = Submit Di μA Value Units ? Part B - Power supplied to the motor when efficiency is considered If the motor has an efficiency of = 0.88, what power must be supplied to the motor to raise the crate? Express your answer to two significant figures and include the appropriate units.

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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