A rope of length L = 1.5 m and mass m = 2.3 kg is initially at rest and can slide on an inclined surface with incline 0 = 25° as shown in the figure. Assume that the part of the rope that is not on the inclined surface hangs down vertically at all times and that the static friction coefficient between the rope and the surface is us = 0.61.

A rope of length L = 1.5 m and mass m = 2.3 kg is initially at rest and can slide on an inclined surface with incline 0 = 25° as shown in the figure. Assume that the part of the rope that is not on the inclined surface hangs down vertically at all times and that the static friction coefficient between the rope and the surface is us = 0.61.

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 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

See similar textbooks

Similar questions

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.
If PCD=6000lb and PGD=1000lb (both compression), find P and Q.
Calculate the work done by friction as a function of y
The component of the force along the inclined plane due to mass of the body on a inclined plane is 500N. The net force acting on the body is 100N.The force of friction is Select one: 5 N 400 N 600 N 0.2 N
A body of weight 450 N is pulled up along an inclined plane having inclination 30° to the horizontal at a steady speed. Find the force required if the co-efficient of friction between the body and the plane is 0.25
Calculate the frictional force developed between the block and the plane. Given P=225 N , W= 691 N, and θ=59 degrees
A 10 kg block is moving on a horizontal table. The coefficient of kinetic friction between them is 0.3. What is the frictional force acting upon the block?
a. A vehicle with the handbrake drawn must be pushed and moved. The vehicle weight is 1200 kg, and the force required to push the vehicle is 300 kg (G=10 m/s2 can be taken). Determine the value of the coefficient of friction that occurs when the wheels of the car make a sliding movement on the asphalt. As the car is pushed and moved, the speed of the car increases to 3.6 km/h. Find the power spent on friction b. An oil film was formed under the wheels while the same vehicle was pushed with the handbrake drawn, and the vehicle thrust was reduced to 6 kg (G=10 m/s2). Determine the value of the coefficient of friction that occurs between the molecules of the lubricant. The speed of the vehicle increases to 3.6 km/h when the vehicle is moved by pushing on the oil film. Find the power spent on friction
Determine ratio of friction energy to total energy
An elevator moves downward at a speed of 1 ft/s. If the total weight is 4500 lbf, find the cushionforce needed to stop the elevator in 2 inches. Use the rolling friction of 0.02 of the verticalweight
body resting on a rough horizontal plane requires a pull of 300 N inclined at 40º to the horizontal plane just to move it. It is found that a push of 150 N inclined at 40o to the x-axis can also make the body to move. Determine the weight of the body and the coefficient of friction.