The force Pis applied to the 57-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 278 N, and (c) P = 405 N. (d) What value of Pis required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are u, =- 0.30 and Hg = 0.27, respectively. The friction force is positive if up the incline, negative if down the incline. 57 kg 27° H.= 0.30 HE = 0.27 19 Answers: (a) F= N (b) F= i N (c) F= N (d) P= i N

The force Pis applied to the 57-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 278 N, and (c) P = 405 N. (d) What value of Pis required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are u, =- 0.30 and Hg = 0.27, respectively. The friction force is positive if up the incline, negative if down the incline. 57 kg 27° H.= 0.30 HE = 0.27 19 Answers: (a) F= N (b) F= i N (c) F= N (d) P= i N

Name: The force P is applied to the 57-kg block when it is at rest. Determi
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: The force P is applied to the 57-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by thesurface on the block if (a) P = 0, (b) P = 278 N, and (c) P = 405 N. (d) What value of P is required to initiate

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

You must push a crate across a floor to a docking bay. The crate weighs 183 N. The coefficient of static friction between crate and floor is 0.500, and the coefficient of kinetic friction is 0.300. Your force on the crate is directed horizontally. (a) What magnitude of your push puts the crate on the verge of sliding? (b) With what magnitude must you then push to keep the crate moving at a constant velocity? (c) If, instead, you then push with the same magnitude as the answer to (a), what is the magnitude of the crate's acceleration? (a) Number i (b) Number (c) Number i Units Units Units
A boy takes 11.8 seconds to slide down a smooth inclined plane of angle such that tan(0) = 1.6, starting from rest. How long (in seconds) he takes to slide down an identical rough inclined plane of friction coefficient 0.71, if he starts from rest?
A constant force Fa pushes a 22.5-kg box across a rough horizontal surface. The magnitude of Fa is 185 N and the force is inclined at an angle of θ = 30.0° below the horizontal. The coefficient of kinetic friction between the box and the surface is μk = 0.500. What is the magnitude of the box's acceleration?
A block of mass m= 13.5 kg rest on inclined plane with the coefficient of static friction of us= 0.12 between the block in the plane. The inclined plane is L= 6.3 m long and it has a height of h= 3.8 m at its tallest point. What angle, Θ in degrees, does the plane make with respect to the horizontal? What is the magnitude of the normal force, Fn in Newton’s, that acts on the block? What is the component of the force of gravity along the plane, Fgx in Newton’s? Will the block slide?
The force P is applied to the 34-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P= 137 N, and (c) P = 202 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are μs = 0.23 and Uk = 0.19, respectively. The friction force is positive if up the incline, negative if down the incline. 34 kg 15° 18° Р H₂= 0.23 = 0.19
The inclination of a frictionless inclined plane is θ and an object of mass m awaits at its top. What is the magnitude of the normal force exerted by the plane on the object during its motion on the inclined plane after the object is released?a) mg sinθ b) mg tan θ c) mgd) mg cosθe) mg cotθ
The force P is applied to the 44-kg block when it is at rest. Determine the magnitude and direction of the friction force exerted by the surface on the block if (a) P = 0, (b) P = 118 N, and (c) P = 189 N. (d) What value of P is required to initiate motion up the incline? The static and kinetic coefficients of friction between the block and the incline are μ = 0.17 and k = 0.12, respectively. The friction force is positive if up the incline, negative if down the incline. Answers: (a) F = 44 kg 10° (c) F= i (b) F= i i (d) P= i 15° H₂= 0.17 H₂ = 0.12 N N N N
Suppose you have a stack of 17 identical steel bars (steel bars have a mass of 1.00kg each). You are required to pull out bar number 16 from the stack (counting from the top of the stack down). Assuming that your assistant holds all other bars in place. If the coefficient of friction between steel and steel is 0.750, how hard do you have to pull (in N)?
An initially stationary box of sand is to be pulled across a floor by means of a cable in which the tension should not exceed 852 N. The coefficient of static friction between the box and the floor is 0.490. (a) What should be the angle between the cable and the horizontal in order to pull the greatest possible amount of sand, and (b) what is the weight of the sand and box in that situation? (a) Number i Units (b) Number i Units
Two boxes of mass m, =3.9 kg and m,=2.3 kg are made of different materials. The boxes in contact are pushed up an incline of angle 0 = 28" by a force applied to the mass m, of magnitude F=76 N. If the coefficient of kinetic friction between the surface of the incline and the mass m, is Hr. =0.25 and between the surface of the incline and the mass m, is Hk=0.1. m2 a) Determine the magnitude acceleration of both boxes (Hint: The combined object of the masses experiences the applied force, the kinetic friction force of mass m,and m, and the component of the gravitational force downhill) a = b) Determine the magnitude of the contact forces F12 = F21=
A woman exerts a horizontal force of 139 N on a crate with a mass of 38.7 kg. (a)If the crate doesn't move, what's the magnitude of the static friction force (in N)?N(b)What is the minimum possible value of the coefficient of static friction between the crate and the floor? (Assume the crate remains stationary.)
The force acting on a particle has a magnitude of 166 N and is directed 29.4° above the positive x-axis. (a) Determine the x-component of the force. (b) Determine the y-component of the force.