70. A pencil rests against a corner, as shown below. The sharpened end of the pencil touches a smooth vertical surface and theeraser end touches a rough horizontal floor. The coefficient of static friction between the eraser and the floor is u, = 0.7. Thecenter of mass of the pencil is located.7cm from the tip of the eraser and(3 .0 cm from the tip of the pencil lead. Find theminimum angle 0 for which the pencil does not slip.Dlease enteyour Auswer in133 стdegreesCM8.7 cm

Given: Coefficient of static friction μs=0.7 Length of pencil l = 21.7 cm = 0.217 m.

70. A pencil rests against a corner, as shown below. The sharpened end of the pencil touches a smooth vertical surface and the eraser end touches a rough horizontal floor. The coefficient of static friction between the eraser and the floor is pu, = 0.7 . The center of mass of the pencil is located87cm from the tip of the eraser and(3 .0 cm from the tip of the pencil lead. Find the minimum angle 0 for which the pencil does not slip. Please enter your Auswer in degres 13 cm -8.7 cm- CM

70. A pencil rests against a corner, as shown below. The sharpened end of the pencil touches a smooth vertical surface and the eraser end touches a rough horizontal floor. The coefficient of static friction between the eraser and the floor is pu, = 0.7 . The center of mass of the pencil is located87cm from the tip of the eraser and(3 .0 cm from the tip of the pencil lead. Find the minimum angle 0 for which the pencil does not slip. Please enter your Auswer in degres 13 cm -8.7 cm- CM

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

Related questions

Q: A1 450-kg automobile has a wheel base (the distance between the axles) of 2.80 m. The automobile's…

Q: Problem 6: Inputs: ● ● ● P = 100 N m = 40 kg μs = 0.4 The uniform crate has a mass, m, acting…

A: Normal Reaction: If an object is placed on a flat surface placed horizontally then the weight of the…

Q: Below is a diagram of a baseball/forearm system at rest. It is acted on by four different forces:…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular…

Q: A stick with a mass of 0.215 kg and length 0.440 m rests in contact with one end on a ball and the…

Q: A person is pushing a wheelbarrow along a ramp that makes an angle a = 39.0° with the horizontal.…

A: Given:angle of inclination, α = 39.0omass of loaded wheelbarrow, m = 29.85 kgnet force, F is only in…

Q: 3. A 165 lb man is climbing a 5.0 m long ladder weighing 25 lb as shown below. The coefficient of…

A: The weight of the person is W=165 lb The length of the ladder is L=5.0 m The weight of the ladder is…

Q: An architecture student working at a drafting table requires some muscle action in order to support…

Q: A 1 470-kg automobile has a wheel base (the distance between the axles) of 3.10 m. The automobile's…

A: Since the car is in static equilibrium the total force and torque on the car is zero.The force of…

Q: 7. Tarzan prepares to swing and much to his dismay, gets his loincloth stuck on a branch. He's left…

A: Here, we use the relation between weight and mass of a body to get the weight of Tarzan.

Q: End A of a slender, uniform rod of length L and weight W bears on a surface as shown, while end B is…

A: Given

Q: A 2.0 m 3.5 m

A: Given: The weight of th beam is 1200 N. The length of the beam is 3.5 m. The weight 550 N is 2 m…

Q: 1. One end of a uniform meterstick is placed against a vertical wall. The other end is held by a…

Q: 2. A person is doing a sit-up (lie on their back and raise their torso up while keeping their lower…

A: SOlution: Given that mass m = 31 kg r1 = 31 cm r2 = 12 cm

Q: (e) Calculate d₂. Enter to 3 significant figures d₂= 0.40 X√

Q: A ladder leans against a wall 5 meters above the ground so a homeowner can clear his gutters of…

A: Given: The height at which the ladder is leaned, h = 5 m Distance of foot of ladder from the wall, d…

Q: While training for a climb, a climber leans out against a verticle wall ( that has negligible…

A: A triangle is formed by the climber - wall and ground that is a right angled triangle.

Q: A person carries a plank of wood 2.00 m long with one hand pushing it down at one end with a force…

A: Solution: From our free-body diagram we conclude that…

Q: A drawbridge is 7 meters long, and is held in place at an angle of 50° by a horizontal chain as…

A: Solution -

Q: A uniform plate of height 0.970 m is cut in the form of a parabolic section. | y H 1 The lower…

A: Consider the given parabolic equation:y= Let us consider a small section in parabolic section of…

Q: Hi please help!: A horizontal 14 kg balance beam is 4.8 m in length and has its center of mass at…

A: Given data: The mass of the beam is M=14 kg The length of the beam is L=4.8 m The mass of the object…

Q: In order to get his car out of the mud, a man ties one end of a rope to the front bumper and the…

Q: A 200 N sign hangs from the middle of a cable between two buildings. The ends of each cable are…

A: For the sign to be in equilibrium, the net force on the sign in vertical direction must be zero. The…

Q: Determine the force P necessary to start the V-shaped wedge to the right if the coefficient of…

Q: You are working in an ice skating rink and have been asked to hang a new banner on the wall. Your…

A: For the ladder to not slip, it must remain in translational as well rotational equilibrium. The…

Q: A ladder leans against a wall 5 meters above the ground so a homeowner can clear his gutters of…

A: Solution:-

Q: The figure shows a 1280 kg car that has slipped over the edge of an embankment. People are trying to…

Q: 1. The picture shows a heavy ball held in the palm of a hand. The mass of the ball M is 7.5 kg. The…

Q: A lunch tray is being held in one hand, as the drawing below illustrates. Ls 12 LA Answer L T The…

Q: A meter stick is supported by a knife-edge at the 50-cm mark. You hang masses of 0.40 kg and 0.60 kg…

Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

70. A pencil rests against a corner, as shown below. The sharpened end of the pencil touches a smooth vertical surface and the
eraser end touches a rough horizontal floor. The coefficient of static friction between the eraser and the floor is u, = 0.7. The
center of mass of the pencil is located.7cm from the tip of the eraser and(3 .0 cm from the tip of the pencil lead. Find the
minimum angle 0 for which the pencil does not slip.
Dlease ente
your Auswer in
13
3 ст
degrees
CM
8.7 cm

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A 1 555-kg automobile has a wheel base (the distance between the axles) of l = 2.85 m. The automobile's center of mass is on the centerline at a point 1.35 m behind the front axle. Find the force exerted by the ground on each wheel. Part 1 of 3 - Conceptualize Since the center of mass is located in the front half of the car, there should be more force on the front wheels than the rear ones. The sum of the wheel forces must equal the weight of the car. Part 2 of 3 - Categorize Use the figure as a force diagram. Apply Newton's second law and sum the torques to find the unknown forces. l Part 3 of 3 - Analyze The torque about the front axle is zero, so we have Στις = 0 = (d Fg) - l (2F₁). Thus the force at each rear wheel is given by d F F₁ = 2Ff g || d 21 2F, m)(1. X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step da N. Since the sum of the wheel forces equals the weight of the car, we have 2F₁ + 2F₁ = Fg.…
Consider a method for measuring the mass of a person’s arm in anatomical studies. The subject lies on her back, extends her relaxed arm to the side and two scales are placed below the arm. One is placed under the elbow and the other under the back of her hand. Construct a problem in which you calculate the mass of the arm and find its center of mass based on the scale readings and the distances of the scales from the shoulder joint. You must include a free body diagram of the arm to direct the analysis. Consider changing the position of the scale under the hand to provide more information, if needed. You may wish to consult references to obtain reasonable mass values.
A gymnast rises onto her toes, as shown in the picture on the right. The floor pushes up on the ball of her foot with a force of N=313 N. If 0=56.0°, what are FH the forces in her heel (TH) and ankle joint (T), and what is the angle o? Answers: TH=481 N; T,=761 N; b=20.7° N, 0. 4.25 cm 9.66 cm 5.
For a meter stick of mass 147.89 g, it is found that its weight can be balanced by hanging a 183.99 g mass at the 95.00 cm mark. Where does the center of the weight of the meter stick locate on the meter stick? Enter the number in cm unit.
A ladder leans against a wall 5 meters above the ground so a homeowner can clear his gutters of leaves from last fall. The bottom of the ladder just begins to slip when it is 1.7 meters from the wall. What is the coefficient of static friction between the bottom of the ladder and the ground?
4. Orin and Ann, two paramedics, rush a 60.0 kg man from the scene of an accident to a waiting ambulance, carrying him on a uniform 3.00 kg stretcher held by the ends. The stretcher is 2.60 m long and the man’s center of mass is 1.00 m from Ann. How much force must Orin and Ann each exert to keep the man horizontal? a. Orin = 230 N, Ann = 388 N b. Orin = 201 N, Ann = 411 N c. Orin = 241 N, Ann = 377 N d. Orin = 141 N, Ann = 477 N e. None of the above
It is sometimes important to determine the location of a person’s center of gravity(which coincides with the center of mass because the gravitational force is uniform at the scale of the human body). This can be done with the arrangement shown intheFigure below. A light (negligible mass) plank rests on two scales that read Fg1=380 N and Fg2=320 N. The scales are separated by a distance of 2.00 m. How far from the woman’s feet is her center of gravity?
A box of mass M = 50 kg rests on a rough (ji) horizontal surface. When a force F = 300 N is acted on the box as %3D %3D shown in the figure below, the box becomes on the verge of slipping (Y alig de j gainall ). The coefficient of static friction of the rough surface is: F A. 0.92 B. 0.75 40° C. 0.14 D. 0.57 E. 0.34
A 68 kg man is in the prone position while during pushups. His feet and hands are 95 cm and 42 cm away respectively from his center of mass. What is the normal force exerted by on each (a) hand and (b) foot?
A 10 m long board has a mass of 7 kg. The left end of the board is against a wall and it sticks straight out like a boom. A rope is tied 1 m from the right end of the board and makes a 44 degree angle with the boom. A 25 kg box hangs 3 m from the right end. Find the tension in the rope.
B 60° Figure 3 L A 5. A beam AB of length 10m and negligible mass leans against a wall at an angle of 60° to the horizontal. It is held at B by a string as shown. There is no friction at either of the ends A or B. A koala of mass M = 10 kg climbs up the beam from B. If the breaking tension of the string is 40 N, find the distance reached by the koala just before the string cannot support any more weight and breaks.