Answered: SA 50 kg 40t NA 30 deg 100 kg

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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Question

A frictionless pulley is used to hoist or lower mass A (100 Kg) vertically upwards as the mass B (50 Kg) is pulled down the rough incline plane (? = 0.25, angle of inclination = 30 degrees) with a force P = 40t N parallel to the incline plane, where t is time in seconds.

(a) Draw free body diagrams of mass A and B.

(b) Establish the relationship between the velocity and acceleration of the particles.

(c) Write down the equation of motion for the particles and determine the acceleration of particles A as a function of time.

(d) Given that at t = 0, s_A 10m, V_A=O, determine when motion of mass A stops and the tension in the cable at that instant.

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