Part (b). Follow the same procedure with P = 107 N. What is the friction force F needed to keep the block from slipping? If thefriction force F for this case is in the same direction as that shown in the sketch, enter a positive number. If the friction force F forthis case is in the opposite direction as that shown in the sketch, enter a negative value for F. What is the magnitude of themaximum friction force Fmax that can be produced in this situation (enter a positive value for Fmax)?mgPNAnswers:F =iNFmax =N The 45-kg crate is stationary when the force Pis applied. Determine the resulting acceleration of the crate if (a) P = 0, (b) P = 107 N,and (c) P = 197 N. The acceleration is positive if up the slope, negative if down the slope.H = 0.15HE = 0.1245 kgP12°

Answered: Image /qna-images/answer/97d450eb-4414-404d-9306-b86151b9aad7.jpg

Answered: Part (b). Follow the same procedure…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The force P is applied to the 51-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 178 N, and (c) P = 228 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are μs = 0.20 and μk = 0.15, respectively. The friction force is positive if up the incline, negative if down the incline. Kindly give a detailed solution, thank you!
The force P is applied to the 34-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 125 N, and (c) P = 217 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are μs = 0.26 and μk = 0.23, respectively. The friction force is positive if up the incline, negative if down the incline. Kindly show clear solution thank you.
A cylinder weighing 400 lb is held against a smooth incline by means of the weightless rod AB in FIig. P-309. Determine the forces P and N exerted on the cylinder by the rod and the incline respectively.
A block weighing 100 N is placed on an inclined plane of slope angle 30 degrees and is connected to a secondhanging block of weight “W”, by a cord passing over a small frictionless pulley. The coefficient of slidingfriction is 0.3. Find the weight “W” for which the 100N block moves up the inclined plane at a constantvelocity.
The two blocks (MA = 100 kg, MB = 150 kg) shown are originally at rest. Assuming that the coefficients of friction between the blocks and the inclines are ms = 0.25 and mk = 0.20, determine a. acceleration of block A b. tension in the cord
A car is being towed up on an incline with an angle of 15ᵒ with the horizontal. Find the force (parallel to the incline) needed to pull the car with an acceleration of 1.2 m/s2. The car weighs 20 kN. Neglect friction. A. 5.18 kNB. 8.36 kNC. 2.45 kN D. 7.62 kN
A 480-kg log is being steadily pulled up the incline by means of the cable attached to the winch on the truck. If the coefficient of kinetic friction is 0.86 between the log and the incline and 0.52 between the cable and rock, determine the tension T which must be developed by the winch. (Answer: T = 8520 N)
The cross section of a concrete dam JKLMN as shown in Figure 1 is used to retain water. The specific weight of the concrete dam is 24 kN/m3 . The coefficient of friction between the base of the dam and the foundation is 0.45. For one meter dam length, calculate the maximum water depth, d to ensure the stability of the dam against;(a) Sliding.(b) Overturning
A rectangular dam has a height and width of 25 m and 15 m, respectively. The depth of water on one side of the dam is 20 m, and the coefficient of friction between the dam and the foundation is 0.8. Neglect the effect of hydrostatic uplift. Determine the hydrostatic force on one side of the dam considering 1-meter strip. Calculate the factor of safety against sliding if the specific gravity of the dam is 2.31. Evaluate the factor of safety against overturning.
Knowing that L = 4 m, Concentrated load P = 15 kN and uniform distributed load w = 12 kN/m, determine the slope at C by Castigliano’s Theorem.(E= 200 GPa, I = 40x106 mm4)
A Block weighing 100N is held on a 400 incline by a Bar attached to a 150N Block on a horizontal plane. The Bar which is fastened by a smooth pin at each end is inclined 200 above the horizontal. The angle of Friction between each Block and its Plane is 180. Find the horizontal Force P applied to the150N Block which will cause it to be on the point of moving to the right?
The concrete gravity dam given in the figure has a width B=150 m (into the paper) 1. Calculate the hydrostatic force on the dam. 2. Assuming that the uplift force is 20% of the dam weight and that the static friction is 0.65 (between the dam and the soil), prove the the dam is table against sliding and against overturning around the point O.

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