Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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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 create…
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, sA 10m, VA=O, determine when motion of mass A stops and the tension in the cable at that instant.

SA 50 kg 40t NA 30 deg 100 kg
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Transcribed Image Text:SA 50 kg 40t NA 30 deg 100 kg
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