CASIO fx-991ES PLUS ALPHA CALC EGO the car move ? [Ans. NA 16.5 kN, Ng =42.3 kN, the car does not move] %3D 5. A box weighs 150 kg. The coefficient of static friction between the box and the ground is 0.3. Determine if the 80 kg man can pull the box without slipping when the coefficient of static friction between the man's shoes and the ground is 0.4. Hint: analyse block and man separately i.e. draw separate FBDS

CASIO fx-991ES PLUS ALPHA CALC EGO the car move ? [Ans. NA 16.5 kN, Ng =42.3 kN, the car does not move] %3D 5. A box weighs 150 kg. The coefficient of static friction between the box and the ground is 0.3. Determine if the 80 kg man can pull the box without slipping when the coefficient of static friction between the man's shoes and the ground is 0.4. Hint: analyse block and man separately i.e. draw separate FBDS

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.3P: Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair...

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Two identical chairs, each weighing 14 lb, are stacked as shown. The center of gravity of each chair is denoted by G. The coefficient of static friction is 0.2 at B (the contact point between the chairs) and 0.35 at A, C, and D. Determine the smallest force P that would cause sliding.
The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the smallest force P and the corresponding angle that would cause impending sliding of the block. The angle of static friction between the block and the ground is s.
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合目 PO Week6 Friction_21-22.pdf ads/Week6_Friction_21-22.pdf 4. The mine car and its contents have a total mass of 6000 kg and a centre of gravity at G. If the coefficient of static friction 10 kN between the wheels and the 0.9 m • G tracks is u = 0.4 when the wheels are locked, find the normal force acting on the front wheels at B and the rear %3D A. /0.15 m B. 0.6 m- -1.5 m- wheels at A when the brakes at both A and B are locked. Does the car move? [Ans. NA = 16.5 kN, Ng =42.3 kN, the car does not move] ily
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