The 517-N force is applied to the 95-kg block, which is stationary before the force is applied. Determine the magnitude and directionof 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 = 517 N28°4, = 0.70= 0.54Answer: F--372.18

Consider the free body diagram of the block as shown below.

Answered: The 517-N force is applied to the 95-kg…

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 7.17P: The two uniform sheets of plywood, each of length L and weight W, are propped as shown. If the...

See similar textbooks

Similar questions

The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If the force required to start the spool rotating is F = 160 lb, determine the coefficient of friction between the ground and the spool. Neglect the diameter of the spindle compared to the diameter of the spool.
The 3600-lb car with rear wheel drive is attempting to push the 4500-lb crate. The center of gravity of the car is at G, and the coefficients of static friction are 0.6 at B and 0.2 at C. Determine if the crate will slide. (The car pulling the crate is analyzed in Prob. 7.19.)
The crate, which has a mass of 140 kg, is subjected to the action of the three forces shown in the figure. If it is originally at rest, determine the friction force when Py =750 N, P, =900 N, P;=500Nand 6 = 259 Assume the coefficient of kinetic friction between the crate and the surface is pi = 0.40.
The 449-N force is applied to the 81-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.
The three stone blocks have masses of mA = 60 kg, mg = 15 kg, and mc 50 kg. Determine the smallest horizontal force P that must be applied to block C in order to move this block. The coefficient of static friction between the blocks is Us 0.3, and between the floor and each block is 's = 0.5.
A worker is pulling down the rope as shown. If the pulleys in the system are frictionless, and the coefficient of static friction between the crate and the floor is μs= 0.3, determine the smallest force the worker must exert on the rope in order to move the 100 kg crate, and the angle θ at this moment.
If the center of gravity of the stacked tables is at G,and the stack weighs 100 lb, determine the smallestforce P the boy must push on the stack in order tocause movement. The coefficient of static friction atA and B μs = 0.3. (The tables are locked together) Answer: P = _____________
The crate has a weight of W = 350 lb, and the coefficients of static and kinetic friction are μs = 0.3 and μk = 0.2, respectively. Determine the friction force on the floor if θ = 47.4° and P = 105 lb.
The mine car and its contents have a total mass of 7.1 Mg and a center of gravity at G . If the coefficient of static friction between the wheels and the tracks is μs = 0.34 when the wheels are locked, find the following: 1 The normal force acting on the front wheels at B is Blank 1 kN when the brakes at both A and B are locked. 2 The normal force acting on the rear wheels at A is Blank 2 kN when the brakes at both A and B are locked. 3 The friction force acting on the front wheels at B is Blank 3 kN when the brakes at both A and B are locked. 4 The friction force acting on the rear wheels at A is Blank 4 kN when the brakes at both A and B are locked. 5 With the given information above, does the car move? Answer with Yes or No only. Blank 5
The 1.2-kg wooden block is used for level support of the 9-kg can of paint. Determine the magnitude and direction of (a) the friction force exerted by the roof surface on the wooden block and (b) the total force exerted by the roof surface on the wooden block.
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.
A truck is traveling at 40 mph when the brakes are applied on all of its wheels, causing it to skid at about 33 feet before stopping. If the vehicle has a weight of 18 kips. Determine the constant horizontal force developed on the coupling at m, and the frictional force developed between the tires of the vehicle and the road during this time. The total mass of the trailer is 7 kips. Draw the fbd thank you

SEE MORE QUESTIONS

Recommended textbooks for you

International Edition---engineering Mechanics: St…

Mechanical Engineering

ISBN:

9781305501607

Author:

Andrew Pytel And Jaan Kiusalaas

Publisher:

CENGAGE L