Q3.) A front wheel drive industrial truck is used to move a solid 1500 kg cylinder with a diameterof 1 meter up the 30° incline. The coefficients of static and kinetic friction between thecylinder and both surfaces are 0.4 and 0.2, respectively.Determine the required tractive force between the truck'sfront tires and the horizontal surface necessary to beginmoving the cylinder up the incline. Assume negligible frictionbetween the rear wheels and the horizontal surface. Considertwo possible ways the cylinder might move up the incline.Note: the tractive force represents the friction force betweenthe front wheels and the horizontal surface directed to theright.30°

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Answered: Q3.) A front wheel drive industrial…

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 7.24P: A uniform plank is supported by a fixed support at A and a drum at B that rotates clockwise. The...

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The coeffient of static friction between the uniform bar AB of weight W and the ground is 0.45. Find the smallest angle and the corresponding force P that would initiate simultaneous tipping and sliding of the bar.
A uniform plank is supported by a fixed support at A and a drum at B that rotates clockwise. The coefficients of static and kinetic friction for the two points of contact are as shown. Determine whether the plank moves from the position shown if (a) the plank is placed in position before the drum is set in motion; and (b) the plank is first placed on the support at A and then lowered onto the drum, which is already rotating.
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 figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016, determine the force F required to advance the bar at a constant speed.
Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center of gravity of the mower is at G, and the coefficients of rolling resistance are 0.12 for the front wheels and 0.18 for the rear wheels.
Determine the smallest horizontal force P that must be applied to block B to cause impending motion. The angles of static friction are 15 between the blocks and 30 between the blocks and the ground.
Draw the FBD of the entire frame, assuming that friction and the weights of the members are negligible. How many unknowns appear on this FBD?
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A horizontal force P acts on the top of the 30 N block having a width of 25 cm and a height of 50 cm. If the coefficient of friction between the block and the plane is 0.33. a. What is the value of P for motion to impend? b. Is the motion will impend due to overturning? Show your solution.
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Two block A and B are connected by a rope which wraps areound a peg with static coefficient of friction of 0.2. The block B weight 50-lb and is subjected to a 35-Ib force as shown. The static coefficient of friction for the contact surface between the block and the gound is 0.4. Find the range of weight of block B for no motion( Hint: no motions no sliding and no tipping).

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