Homework1- A 20-kg package is at rest on an incline when a force P is applied to it. Determine themagnitude of P if 10 s is required for the package to travel 5 m up the incline. The staticand kinetic coefficients of friction between the package and the incline are both equal to0.3.2- The two blocks shown are originally at rest. Neglecting the masses of the pulleys andthe effect of friction in the pulleys and assuming that the coefficients of friction betweenblock A and the horizontal surface are u, = 0.25 and uk = 0.20, determine (a) theacceleration of each block, (b) the tension in the cable.3- To unload a bound stack of plywood from a truck, the driver first tilts the bed of thetruck and then accelerates from rest. Knowing that the coefficients of friction betweenthe bottom sheet of plywood and the bed are u, = 0.40 and uk = 0.30, determine (a)the smallest acceleration of the truck which will cause the stack of plywood to slide, (b)the acceleration of the truck which causes corner A of the stack to reach the end of thebed in 0.9 s.40Asst. Prof. Dr. Waleed Al-AshtariCollege of Engineering / University of BaghdadDynamics2 m1204- Knowing that the system shown starts from rest, find the velocity at t = 1.2 s of (a)collar A, (b) collar B. Neglect the masses of the pulleys and the effect of friction.10 kg15 kg5- A 60-kg wrecking ball B is attached to a 15-m-long steel cable AB and swings in thevertical arc shown. Determine the tension in the cable (a) at the top C of the swing, (b)at the bottom D of the swing, where the speed of B is 4.2 m/s.

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1- A 20-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10 s is required for the package to travel 5 m up the incline. The static and kinetic coefficients of friction between the package and the incline are both equal to 0.3.

1- A 20-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10 s is required for the package to travel 5 m up the incline. The static and kinetic coefficients of friction between the package and the incline are both equal to 0.3.

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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