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The motor is towing the crate that has a mass of mc= 1000 kg, and rests on the flat surface. It delivers an increasing horizontal pulling force of T= 500 Newton, where t is in second, to its cable at A, after which the force is kept constant at 5000 N. The coefficients of static friction and kinetic friction are us =0.3 and uk =0.2, respectively, between the crate and the surface. Determine the velocity (m/s) of the crate when t₂ = 5s.

The motor is towing the crate that has a mass of mc= 1000 kg, and rests on the flat surface. It delivers an increasing horizontal pulling force of T= 500 Newton, where t is in second, to its cable at A, after which the force is kept constant at 5000 N. The coefficients of static friction and kinetic friction are us =0.3 and uk =0.2, respectively, between the crate and the surface. Determine the velocity (m/s) of the crate when t₂ = 5s.

Elements Of Electromagnetics
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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The motor is towing the crate that has a mass of me = 1000 kg, and rests on the flat surface. It delivers an increasing horizontal pulling force of T= 500 Newton, where t is in second, to its cable at A, after 5 which the force is kept constant at 5000 N. The coefficients of static friction and kinetic friction are us =0.3 and uk =0.2, respectively, between the crate and the surface. Determine the velocity (m/s) of the crate when t₂ = 5s.
Transcribed Image Text:The motor is towing the crate that has a mass of me = 1000 kg, and rests on the flat surface. It delivers an increasing horizontal pulling force of T= 500 Newton, where t is in second, to its cable at A, after 5 which the force is kept constant at 5000 N. The coefficients of static friction and kinetic friction are us =0.3 and uk =0.2, respectively, between the crate and the surface. Determine the velocity (m/s) of the crate when t₂ = 5s.
In the system shown, a 150 N collar-pulley assembly slides on a horizontal shaft with coefficient of kinetic friction uk =0.10 between the collar and the shaft, and is acted upon by a force P with a magnitude of P = 250N at an angle 0 = 30 as shown. Knowing that the assembly is initially at rest, what is the time when the velocity of collar B reaches to 3 m/s? Also, at this instant, find the tensile force in the cord and the velocity of block A.
Transcribed Image Text:In the system shown, a 150 N collar-pulley assembly slides on a horizontal shaft with coefficient of kinetic friction uk =0.10 between the collar and the shaft, and is acted upon by a force P with a magnitude of P = 250N at an angle 0 = 30 as shown. Knowing that the assembly is initially at rest, what is the time when the velocity of collar B reaches to 3 m/s? Also, at this instant, find the tensile force in the cord and the velocity of block A.
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