11.2 Boxes A and B are at rest on a conveyer belt that is initially at rest. The belt suddenly startsin an upward direction so that slipping instantly occurs between the belt and the boxes. Thekinetic friction coefficients between the belt and the boxes are μk,A = 0.3 and μk,B = 0.32.Determine the initial acceleration of each box. Will the blocks stay together, or separate?80 lb100 lbAB15°Hint: to see if the boxes stay together or separate, first assume they separate, and see if theirresulting motion (acceleration) validates that assumption. If the their motion is not consistentwith the assumption of separation, then they must stay together.

Step 1: Data Given mA = 100 lb, mB = 80 lb, μA=0.30 μB=0.32 Let us first draw the free body…

Answered: 11.2 Boxes A and B are at rest on a…

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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1. Draw a free body diagram for the block on the ramp that is attached to the string. There is no friction between the block and the ramp. The angle of the ramp is 35 degrees with respect to the horizontal, and the angle of the string is 45 degrees with respect to the horizontal. The block is at rest, and it has a mass of 10 kg. The acceleration due to gravity for this experiment is 9.8 m/s?. 450 35° 2. Decompose all of the forces into x and y forces 3. Sum the x forces and set them equal to what they should be set equal to. Sum the y forces and set THEM equal to what they should be set equal to.
A block of mass m:=4 kg is placed on an inclined plane with angle a-35°, connected to a second hanging block of mass m_2 by a cord passing over a small frictionless pulley. The static and kinetic friction coefficients are \mu_s=0.5 and \mu_k=0.3, respectively. a.- Determine the mass m_2 such that the block m_1 rises along the plane with constant speed once set in motion. 1.35 kg B: 1.31 kg 1.52 kg B: C: 0.65 kg 1.17 kg b.- Determine the mass m1 such that the block mi moves down the plane with constant speed once set in motion. D: 0.92 kg 1.61 kg D: E: 1.54 kg E: 3.28 kg 2.15 kg c. In what range of values of m2 do the blocks remain at rest, if they are released from rest? A 0.25 kgs my s1.36 B: 0.65 kg smis 3.93 C 0.13 kgs mas 1.87 D: 0.43 kg smis 2.23 E: 0.35 kg s mis 3.87 kg kg kg kg
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A block having a mass of 60kg is subjected to a force, P =337.5N acting 53 degrees from the horizontal that causes it to have an acceleration of 1.2m/s2. Determine the coefficient of kinetic friction.NOTE: use 3 decimal places
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