(a) If the box 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 box and the floor? (Assume the box remains stationary.)

(a) If the box 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 box and the floor? (Assume the box remains stationary.)

Name: A girl exerts a horizontal force of 109 N on a box with a mass of 30.
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: A girl exerts a horizontal force of 109 N on a box with a mass of 30.7 kg.HINT(a) If the box 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

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

Problem 12: A box slides down a plank of length d that makes an angle of 0 with the horizontal, as shown. The kinetic and static coefficients of friction are µk and us, respectively. Omin = 1 Part (a) Enter an expression for the minimum angle at which the box, if initially at rest, will begin to slide. ^^^ 4 acotan(us) atan(us) cos(a) ( ) 7 8 9 cos(p) cos(0) sin(a) 5 6 sin(o) sin(0) 0 α 1 2 3 Mk d t Hints: 0% deduction per hint. Hints remaining: 2 Submit m Hint + * 0 BACKSPACE DEL HOME Feedback END CLEAR I give up! Feedback: 0% deduction per feedback. m 0 Part (b) Enter an expression for the nonconservative work done by kinetic friction as the block slides down the plank. Assume the box starts from rest, and is large enough that it will slide down the plank. the angle Part (c) For a plank of any length, at what angle, in degrees, will the final speed of the box at the bottom of the plank be 0.51 times the final speed of the box when there is no friction present? Assume μ = 0.39.
A box of mass mb is being blown by a strong steady wind across the level surface of a picnic table. The wind exerts a constant horizontal force of magnitude Fwb. As the block slides it accelerates with a magnitude ab. Assuming that kinetic friction is acting, develop an expression for the coefficient of kinetic friction µk between the box and table. Your final answer should be in terms of mb, Fwb, ab and g.
(a) A flatbed truck moving at 28 m/s carries a steel girder that rests on its wooden floor. The girder is not strapped down, in violation with USDOT regulations. If the coefficient of static friction between steel and wood is 0.52, what is the minimum distance over which the truck can come to a stop without the girder sliding toward the cab of the truck? (answer: 77 m) (b) What is the minimum time over which the truck can accelerate forward from 0 m/s to 28 m/s with a constant acceleration without the girder sliding off the back? (answer: 5.5 s) FNET = ma fs.max = μsn W = mg v² = v₁² + 2aAx V = Vo+ at g=9.81 m/s²
The coefficient μ of kinetic frictions depends on the surfaces in contact and their conditions, while the coefficient μ of static frictions does not depend on the surfaces conditions. a) Trueb) False
A small block with mass m is set on the top of an upside-down hemispherical bowl. If the coefficient of static friction between the block and the bowl is μs and the block is slowly repositioned at different points down the surface of the bowl, at what angle measured from the vertical will the block begin to slide? Write your answer in terms of the mass, m; the gravitational acceleration on Earth, g; and the coefficient of static friction, μs. (Assume the +y axis is vertically upward.)
A loaded penguin sled weighing 72.0 N rests on a plane inclined at angle 0 = 22.0° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.270, and the coefficient of kinetic friction is 0.140. (a) What is the minimum magnitude of the force , parallel to the plane, that will prevent the sled from slipping down the plane? (b) What is the minimum magnitude F that will start the sled moving up the plane? (c) What value of F is required to move the sled up the plane at constant velocity? (a) Number i (b) Number i (c) Number i Units Units Units +
Based on this value, what is the minimum coefficient of static friction μs between the race track and the bicycle?
Suppose you have a 100-kg box full of books resting on a wood floor, with coefficient of static friction 0.500 between these surfaces. A force is applied at an angle of 30° with respect to the horizontal, as shown. M (a) What is the minimum force would you need to exert on the box to get it to move? (b) If you continue to exert this force once the box starts to slip, what will be its acceleration? The coefficient of sliding friction is known to be 0.300 for this situation.
Needs Complete typed solution with 100 % accuracy.
A 25.0 kg box of textbooks rests on a loading ramp that makes an angle αα with the horizontal. The coefficient of kinetic friction is 0.250, and the coefficient of static friction is 0.350 As α is increased, find the minimum angle at which the box starts to slip. Express your answer in degrees.
Asap plzzz
Determine two force members first. Two blocks are each pin connected to a massless horizontal link. Determine the largest P before motion cocurs. Use 0.35 and 0.3 for the friction coefficients. 45° J c 4.5 kg 3 kg B 30°