The driver of the sports car applies his rear brakes and causes the tires to slip. If the normal force on each rear tire is 1800 N and the coefficient of kinetic friction between the tires and the pavement is { { \mu }_{ k }=0.5 }μk=0.5, determine the average shear stress developed by the friction force on the tires. Assume the rubber of the tires is flexible and each tire is filled with an air pressure of 225 K P

The driver of the sports car applies his rear brakes and causes the tires to slip. If the normal force on each rear tire is 1800 N and the coefficient of kinetic friction between the tires and the pavement is { { \mu }_{ k }=0.5 }μk=0.5, determine the average shear stress developed by the friction force on the tires. Assume the rubber of the tires is flexible and each tire is filled with an air pressure of 225 K P

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 7.73P: The normal pressure acting on the disk of the sander is given by p=(4/3)+(r2/6), where p is the...

See similar textbooks

Similar questions

The driver of the sports car applies his rear brakes and causes the tires to slip. If the normal force on each rear tire is 1800lb and the coefficient of kinetic friction between the tires and the pavement is { { \mu }_{ k }=0.5 }μk=0.5, determine the average shear stress developed by the friction force on the tires. Assume the rubber of the tires is flexible and each tire is filled with an air pressure of 225 kp.
Question 2 The mine car and its contents have a total mass of 8 Mg and a center of gravity at G. If the coefficient of static friction between the wheels and the tracks is Hs = 0.3 when the wheels are locked, find the normal force acting on the front wheels at B and the rear wheels at A when the brakes at both A and B are locked. Does the car move? t T 15kN 0.8m В A /0.15 m – 0.5m -1.5 m-
The weight of the motorcycle is 151 kg and the weight of the driver is 64 kg. Dimensions: l1 = 0,31 m and l2 = 0,23 m Determine the required frictional force.
Find the degree(s) of freedom and the type of constraint. Show using the principal of virtual work: m2 = γm1/2 where γ is the coefficient of friction.
A 70 lb-bag of rice is being pulled by a person by applying a force F at an angle 0. The force required to drag the bag is F(0) = (70p)/(µsine + cose) where u = 0.35 is the coefficient of friction. Determine the maximum F by creating a vector for the angle with elements ranging from 5° to 35° and spacing of 0.01 and use the built-in function max. The maximum F is
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 =
Calculate the frictional force developed between the block and the plane. Given P=225 N , W= 691 N, and θ=59 degrees
The 463-N force is applied to the 89-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. P = 463 N 32° H = 0.60 H = 0.44 Answer: F = 276.20 is wrong
The coefficient of static friction between the 50-kg crate and the ramp is μs = 0.35. The unstretched length of the spring is 800 mm, and the spring constant is k = 660 N/m. Determine the following: 1 The normal force acting on the crate is Blank 1 N. 2 The friction force acting on the crate is Blank 2 N. 3 The minimum value of x at which the crate can remain stationary on the ramp is Blank 3 mm.
The tractor has a weight of 13500 lb and the coefficient of rolling resistance is a = 1.9 in . Determine the force P needed to overcome rolling resistance at all four wheels and push it forward.
The 113-lb force P is applied to the 250-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume μ = 0.41, μ = 0.32. Answer: F= H₂ Hk lb
The 90-lb force P is applied to the 210-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume 4, = 0.45, µz = 0.35. Answer: F = 94.5 Ib