Q6-Determine the maximum force P that can be applied without causing movement of the 90-kg crate that has a center of gravity at G. The coefficient of static friction at the floor is us = 0.5, as shown in the Figure 10. 1.2 m 0.5 m 0.5 m 0.7 m 1 m

Q6-Determine the maximum force P that can be applied without causing movement of the 90-kg crate that has a center of gravity at G. The coefficient of static friction at the floor is us = 0.5, as shown in the Figure 10. 1.2 m 0.5 m 0.5 m 0.7 m 1 m

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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Q3 - Blocks A and B have a mass of 7 kg and 10 kg, respectively, and there are pulleys at C and D. Using the coefficients of static friction indicated, determine the following: 1- The smallest force P which can be applied to the cord that causes impending motion. 2- Does block B spill, flip over, or nothing happen? Prove that. 400 mm D B 500 mm HAB=0.1 A P MA=0.3
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A 250 lb refrigerator is being pushed. You do not know what force P should be applied. The coefficient of static friction between the refrigerator and floor is lg = 0.4. The center of gravity of the refrigerator is at point G. - d2 -- d2 F1 d3 d1 d4 Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value di 4.5 ft d2 1.5 ft d3 2.5 d4 3.5 a. Determine the force P that is needed to overcome friction. b. Determine the location of the normal force r measured from the center of the refrigerator if the force P from part a is applied. c. Determine the minimum force P that is required to tip the refrigerator. d. Will the refrigerator slip or tip first? Round your final answers to 3 significant digits/figures. P= lb ft Pip = lb Will the refrigerator slip or tip first? tip O slip
2. The coefficient of static friction between all contacting surfaces is μ = 0.4. The weight of each box is the same, W, and the center of gravity of each box is at its geometric center. a) Determine the minimum horizontal force P needed for the top box to be on the verge of sliding across the top of the lower box (be sure to provide a free body diagram). Is this situation physically possible? b) Determine the minimum horizontal force P needed for both boxes to tip together (be sure to provide a free body diagram). Is this situation physically possible? c) Based on your solutions to parts 'a' and 'b' (no new analysis required), if the magnitude of P is slowly increased from a value of zero, which of these two situations will be realized? 1 m 1 m 0.5 m- [ 1.5 m
A chain having a length L and weight W rests on a street for which the coefficient of static friction is us. If a crane is used to hoist the chain, determine the force P it applies to the chain if the length of chain remaining on the ground begins to slip when the horizontal component is Px. What length of chain remains on the ground? Given: L = 20 ft W = 8lb/ft = 0.2 us= : 10 lb Px =
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Q6-Determine the maximum force P that can be applied without causing movement of the 90-kg crate that has a center of gravity at G. The coefficient of static friction at the floor is µ = 0.5, as shown in the Figure 10. Fig. (10) 1.2 m 0.5 m 0.5 m 0.7 m 1 m
Determine the rang of values which the mass m0 may have so that the block 150 kg shown in figure will neither start moving up the plane nor slip down the plane. The coefficient of static friction is 0.3. 150 Kg 20° mo
The uniform 7.3-m pole has a mass of 195 kg and is supported as shown. Calculate the force Prequired to move the pole if the coefficient of static friction for each contact location is 0.39. A 7.3 m 3.0 m P 4.2 m Answer: P = i N
5. A box with a mass of 100 kg was originally attached to the spring at position A. After that, pressure was applied to the box until The spring compresses to a distance of X - 1 m and releases it, causing the box to move upwards along the inclined floor. If the incline has and = the coefficient of friction uk = 0.3, find the box that can travel along the incline for a maximum distance in meters.