Explanation Given : The mass of the crate ( m ) is 40 kg. The coefficient of static friction between the cable and each peg ( μ s ) is 0.1. Draw the free body diagram of the crate as in Figure (1). Draw the free body diagram of the peg as in Figure (2). Using Figure (1) and (2), Find the total friction angle of the rope ( β ) using the relation. β = 2 β 1 + β 2 = 2 [ ( θ 1 180 ) π ] + [ ( θ 2 180 ) π ] (I) Determine the smallest force required ( P ) using the relation. T 2 = T 1 e μ s β P = m × g × e μ s β (II) Here, the acceleration due to gravity is g

13th Edition

ISBN: 9780132915540

Author: Russell C. Hibbeler

Publisher: Prentice Hall

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Chapter 8.5, Problem 97P

To determine

The smallest force (P) required.

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Chapter 8.5, Problem 96P

Chapter 8.5, Problem 98P

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Chapter 8 Solutions

Engineering Mechanics: Statics

Ch. 8.2 - Determine the friction developed between the 50-kg...Ch. 8.2 - Determine the minimum force P to prevent the 30-kg...Ch. 8.2 - Determine the maximum force P that can be applied...Ch. 8.2 - If the coefficient of static friction at contact...Ch. 8.2 - Determine the maximum force P that can be applied...Ch. 8.2 - Prob. 6FP Ch. 8.2 - Blocks A, B, and C have weights of 50 N, 25 N, and...Ch. 8.2 - If the coefficient of static friction at all...Ch. 8.2 - Using the coefficients of static friction...Ch. 8.2 - Prob. 1P

Ch. 8.2 - The tractor exerts a towing force T=400 lb....Ch. 8.2 - The winch on the truck is used to hoist the...Ch. 8.2 - Prob. 4P Ch. 8.2 - Prob. 5P Ch. 8.2 - Prob. 6P Ch. 8.2 - The block brake consists of a pin-connected lever...Ch. 8.2 - The block brake consists of a pin-connected lever...Ch. 8.2 - Prob. 9P Ch. 8.2 - Prob. 10P Ch. 8.2 - The block brake is used to stop the wheel from...Ch. 8.2 - If a torque of M=300 Nm is applied to the...Ch. 8.2 - The cam is subjected to a couple moment of 5N m....Ch. 8.2 - Determine the maximum weight W the man can lift...Ch. 8.2 - The car has a mass of 1.6 Mg and center of mass at...Ch. 8.2 - Prob. 16P Ch. 8.2 - Prob. 17P Ch. 8.2 - Prob. 18P Ch. 8.2 - Prob. 19P Ch. 8.2 - Prob. 20P Ch. 8.2 - Prob. 21P Ch. 8.2 - Prob. 22P Ch. 8.2 - A 35-kg disk rests on an inclined surface for...Ch. 8.2 - The man has a weight of 200 lb, and the...Ch. 8.2 - Prob. 25P Ch. 8.2 - Prob. 26P Ch. 8.2 - Prob. 27P Ch. 8.2 - Prob. 28P Ch. 8.2 - Prob. 29P Ch. 8.2 - Prob. 30P Ch. 8.2 - If the coefficient of static friction at A and B...Ch. 8.2 - Prob. 32P Ch. 8.2 - Prob. 33P Ch. 8.2 - Prob. 34P Ch. 8.2 - Prob. 35P Ch. 8.2 - Prob. 36P Ch. 8.2 - Prob. 37P Ch. 8.2 - Prob. 38P Ch. 8.2 - Prob. 39P Ch. 8.2 - Two blocks A and B have a weight of 10 Ib and 6...Ch. 8.2 - Two blocks A and B have a weight of 10 Ib and 6...Ch. 8.2 - Prob. 42P Ch. 8.2 - Prob. 43P Ch. 8.2 - Prob. 44P Ch. 8.2 - Prob. 45P Ch. 8.2 - The beam AB has a negligible mass and thickness...Ch. 8.2 - It is supported at one end by a pin and at the...Ch. 8.2 - Prob. 48P Ch. 8.2 - Prob. 49P Ch. 8.2 - Prob. 50P Ch. 8.2 - Prob. 51P Ch. 8.2 - Prob. 52P Ch. 8.2 - The wheel weights 20 lb and rests on a surface for...Ch. 8.2 - Prob. 54P Ch. 8.2 - Determine the greatest angle so that the ladder...Ch. 8.2 - Prob. 56P Ch. 8.2 - Prob. 57P Ch. 8.2 - Prob. 4CP Ch. 8.4 - Determine the largest angle that will cause the...Ch. 8.4 - If the beam AD is loaded as shown, determine the...Ch. 8.4 - Prob. 60P Ch. 8.4 - Prob. 61P Ch. 8.4 - If P=250 N, determine the required minimum...Ch. 8.4 - Determine the minimum applied force P required to...Ch. 8.4 - Prob. 64P Ch. 8.4 - Prob. 65P Ch. 8.4 - Prob. 66P Ch. 8.4 - Prob. 67P Ch. 8.4 - If the clamping force on the boards is 600 lb,...Ch. 8.4 - Prob. 69P Ch. 8.4 - If the force F is removed from the handle of the...Ch. 8.4 - If the clamping force at G is 900 N, determine the...Ch. 8.4 - If a horizontal force of F = 50 N is applied...Ch. 8.4 - Prob. 73P Ch. 8.4 - Prob. 74P Ch. 8.4 - The shaft has a square-threaded screw with a lead...Ch. 8.4 - Prob. 76P Ch. 8.4 - Prob. 77P Ch. 8.4 - Prob. 78P Ch. 8.4 - If a horizontal force of P = 100 N is applied...Ch. 8.4 - Determine the horizontal force P that must be...Ch. 8.4 - Prob. 81P Ch. 8.4 - Prob. 82P Ch. 8.5 - A cylinder having a mass of 250 kg is to be...Ch. 8.5 - A cylinder having a mass of 250 kg is to be...Ch. 8.5 - Prob. 85P Ch. 8.5 - Prob. 86P Ch. 8.5 - Prob. 87P Ch. 8.5 - The coefficient of static friction between the...Ch. 8.5 - Prob. 89P Ch. 8.5 - Prob. 90P Ch. 8.5 - Prob. 91P Ch. 8.5 - Prob. 92P Ch. 8.5 - Prob. 93P Ch. 8.5 - Determine the weight of the cylinder if the...Ch. 8.5 - If slipping does not occur at the wall, determine...Ch. 8.5 - Prob. 96P Ch. 8.5 - Prob. 97P Ch. 8.5 - Show that the frictional relationship between the...Ch. 8.5 - Prob. 99P Ch. 8.5 - Determine the largest angles so that the cord...Ch. 8.5 - Prob. 101P Ch. 8.5 - Determine the smallest counterclockwise twist or...Ch. 8.5 - Prob. 103P Ch. 8.5 - Prob. 104P Ch. 8.5 - Determine the smallest stretch of the spring...Ch. 8.5 - Idler pulley A, and motor pulley B. If the motor...Ch. 8.8 - Prob. 107P Ch. 8.8 - Prob. 108P Ch. 8.8 - Prob. 109P Ch. 8.8 - Prob. 110P Ch. 8.8 - Prob. 111P Ch. 8.8 - Prob. 112P Ch. 8.8 - Prob. 113P Ch. 8.8 - Prob. 114P Ch. 8.8 - Prob. 116P Ch. 8.8 - Prob. 117P Ch. 8.8 - Prob. 118P Ch. 8.8 - Prob. 119P Ch. 8.8 - Prob. 120P Ch. 8.8 - Prob. 121P Ch. 8.8 - Prob. 122P Ch. 8.8 - Prob. 123P Ch. 8.8 - Prob. 124P Ch. 8.8 - Prob. 125P Ch. 8.8 - Prob. 126P Ch. 8.8 - Prob. 127P Ch. 8.8 - The vehicle has a weight of 2600 lb and center of...Ch. 8.8 - The tractor has a weight of 16 000 lb and the...Ch. 8.8 - Prob. 130P Ch. 8.8 - Prob. 131P Ch. 8.8 - Prob. 132P Ch. 8.8 - Prob. 133RP Ch. 8.8 - Prob. 134RP Ch. 8.8 - Prob. 135RP Ch. 8.8 - Prob. 136RP Ch. 8.8 - The three stone blocks have weights of, WA =...Ch. 8.8 - The uniform 60-kg crate C rests uniformly on a...Ch. 8.8 - Prob. 139RP Ch. 8.8 - Prob. 140RP Ch. 8.8 - Prob. 141RP Ch. 8.8 - Prob. 142RP Ch. 8.8 - Prob. 143RP Ch. 8.8 - Prob. 144RP

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