College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 33P
|| The coefficient of kinetic friction between a 40 kg crate and the warehouse floor is 70% of the corresponding coefficient of static friction. The crate falls off a forklift that is moving at 3 m/s and then slides along the warehouse floor for a distance of 2.5 m before coming to rest. What is the coefficient of static friction between the crate and the floor?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The coefficient of static friction between a rubber tire and dry pavement is about 0.800. Assume that a car's engine only turns
the two rear wheels and that the weight of the car is uniformly distributed over all four wheels.
What limit does the coefficient of static friction place on the time fmin required for a car to accelerate from rest to 50.0 mph
(22.4 m/s)?
Imin
=
How can friction accelerate a car forward when friction opposes motion?
|| It's a snowy day and you're pulling a friend along a level road on a sled. You've both
been taking physics, so she asks what you think the coefficient of friction between the sled
and the snow is. You've been walking at a steady 1.5 m/s, and the rope pulls up on the
sled at a 30° angle. You estimate that the mass of the sled, with your friend on it, is 60 kg
and that you're pulling with a force of 75 N. What answer will you give?
a) A delivery truck with two stacked crates in the back brakes quickly. The crate on the bottom just barely stays put on the floor of the truck. Does the top crate stay put or does it fall off? The top crate has a mass of 27.0 kg and the mass of the bottom crate is 22.0 kg. The coefficient of static friction between the bottom crate and the truck is 0.420, and the coefficient of kinetic friction for that surface is 0.350. The coefficient of static friction between the crates is 0.400, and the coefficient of kinetic friction is 0.320.
Hint: Don’t forget about Newton’s 3rd Law especially when dealing with friction between the two crates
b) The top crate will slide off if it moves more than 87.5 cm. If the truck braked for 1.84 s did the top crate slide off? If not, how far did it move?
Chapter 5 Solutions
College Physics (10th Edition)
Ch. 5 - Can a body be in equilibrium when only one force...Ch. 5 - A clothesline is hung between two poles, and then...Ch. 5 - A man sits in a seat that is suspended from a...Ch. 5 - You push a box up a frictionless incline at a...Ch. 5 - Why is it so much more difficult to walk on icy...Ch. 5 - A car accelerates gradually to the right with...Ch. 5 - Without doing any calculations, decide whether the...Ch. 5 - A box slides up an incline, comes to rest, and...Ch. 5 - For the objects shown in Figure 5.27, will the...Ch. 5 - A woman is pushing horizontally on two boxes on a...
Ch. 5 - In a world without friction, could you (a) walk on...Ch. 5 - You can classify scales for weighing objects as...Ch. 5 - When you stand with bare feet in a wet bathtub,...Ch. 5 - A horizontal force accelerates a box across a...Ch. 5 - You slide an 800 N table across the kitchen floor...Ch. 5 - A woman wearing spiked shoes pushes two crates...Ch. 5 - A horizontal force with a magnitude P pulls two...Ch. 5 - A crate slides up an inclined ramp and then slides...Ch. 5 - A weightless spring scale is attached to two equal...Ch. 5 - Two objects are connected by a light wire as shown...Ch. 5 - A 100 N weigh: is supported by two weightless...Ch. 5 - The System shown a Figure 5.34 is released from...Ch. 5 - In the system shown in Figure 5.35, M m, the...Ch. 5 - | A 15.0 N bucket is to be raised at a constant...Ch. 5 - | In a museum exhibit, three equal weights are...Ch. 5 - | Two 25.0 N weights are suspended at oppos1te...Ch. 5 - | Two weights are hanging as shown in Figure 5.38....Ch. 5 - | An adventurous archaeologist crosses between two...Ch. 5 - || A 1130 kg car is being pulled up a frictionless...Ch. 5 - || BIO Muscles and tendons. Muscles are attached...Ch. 5 - | BIO Traction apparatus. In order to prevent...Ch. 5 - | BIO A broken thigh bone. When the thigh is...Ch. 5 - || A heavy mirror that has a width of 1 m is to be...Ch. 5 - || In a rescue, the 73 kg police officer is...Ch. 5 - || A tetherball leans against the smooth,...Ch. 5 - Find the tension in each cord in Figure 5.47 if...Ch. 5 - || Two blocks. each with weight w. are held in...Ch. 5 - || A. man pushes on a piano of mass 180 kg 50 that...Ch. 5 - || BIO Forces during chin-ups. People who do...Ch. 5 - || Force on a tennis ball. The record speed for a...Ch. 5 - || BIO Force during a jump. An average person can...Ch. 5 - || Two weights are hanging from the ceiling of an...Ch. 5 - || A large fish hangs from a spring balance...Ch. 5 - || A 750.0 kg boulder is raised from a quarry 125...Ch. 5 - || Which way and by what angle does the...Ch. 5 - | At a construction site, a 22.0 kg bucket of...Ch. 5 - || Two boxes are connected by a light string that...Ch. 5 - | An 80 N box initially at rest is pulled by a...Ch. 5 - | A 2 kg book sits at rest on a horizontal table....Ch. 5 - | At a construction site, a pallet of bricks is to...Ch. 5 - || Two crates connected by a rope of negligible...Ch. 5 - || A hockey puck leaves a players stick with a...Ch. 5 - || Stopping distance of a car. (a) If the...Ch. 5 - || An 85 N box of oranges is being pushed across a...Ch. 5 - || A stockroom worker pushes a box with mass 11.2...Ch. 5 - || The coefficient of kinetic friction between a...Ch. 5 - || Measuring the coefficients of friction. One...Ch. 5 - | With its wheels locked, a van slides down an...Ch. 5 - | BIO The Trendelberg position. In emergencies...Ch. 5 - || BIO Injuries to the spinal column. In treating...Ch. 5 - || A toboggan approaches a snowy hill moving at...Ch. 5 - || A 25.0 kg box of textbooks rests on a loading...Ch. 5 - || A person pushes on a stationary 125 N box with...Ch. 5 - || You are working for a shipping company. Your...Ch. 5 - || An atmospheric drag force with magnitude FD=...Ch. 5 - || What is the acceleration of a raindrop that has...Ch. 5 - || A bullet is fired horizontally from a...Ch. 5 - | You find that if you hang a 1.2Ekg weight from a...Ch. 5 - | An unstretched 50ring is 12.00 cm long. When...Ch. 5 - BIO Heart repair. A 5urgeon is using material from...Ch. 5 - | A 3 kg mass and a 10 kg mass are attached to...Ch. 5 - || A student measures the force required to...Ch. 5 - | Three identical 6.40 kg masses are hung by three...Ch. 5 - | A light spring having a force constant of 125...Ch. 5 - || in the previous problem, what would the answers...Ch. 5 - || Youve attached a bungee cord to a wagon and are...Ch. 5 - || Atwoods machine. A 15.0 kg load of bricks hangs...Ch. 5 - | Mountaineering. Figure 5.62 shows a technique...Ch. 5 - || Two identical, perfectly smooth 71.2 N bowling...Ch. 5 - || A 2 kg block is launched up a frictionless...Ch. 5 - BIO || The stretchy silk of a certain species of...Ch. 5 - || Block A in Figure 5.66111 weighs 60.0 N. The...Ch. 5 - || Friction in an elevator. You are riding in an...Ch. 5 - BIO || A student attaches a series of weights to a...Ch. 5 - BIO || A 65.0 kg parachutist falling vertically at...Ch. 5 - || Block A in Figure 5.68 weighs 1.20 N and block...Ch. 5 - || A block with mass m1 is placed on an inclined...Ch. 5 - || A pickup truck is carrying a toolbox, but the...Ch. 5 - || A window washer pushes his scrub brush up a...Ch. 5 - || An astronaut on the distant planet Xenon uses...Ch. 5 - || Elevator Design. You are designing an elevator...Ch. 5 - || At night while it is dark, a driver...Ch. 5 - || A block of mass m is placed against the...Ch. 5 - Friction and climbing shoes. Shoes for the sports...Ch. 5 - Friction and climbing shoes. Shoes for the sports...Ch. 5 - Friction and climbing shoes. Shoes for the sports...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Express the unit vectors in terms of (that is, derive Eq. 1.64). Check your answers several ways Also work o...
Introduction to Electrodynamics
Q4.36 In a head-on auto collision, passengers who are not wearing seat belts may be thrown through the windshie...
University Physics with Modern Physics (14th Edition)
Provide a concise statement that describes the relationship that exists between a planet's orbital speed and th...
Lecture- Tutorials for Introductory Astronomy
14. (II) The maximum gauge pressure in a hydraulic lift is 17.0 atm. What is the largest-size vehicle (kg) it c...
Physics: Principles with Applications
Choose the best answer to each of the following. Explain your reasoning. Which of these statements is a key ass...
Cosmic Perspective Fundamentals
If the cross product of two vectors vanishes, what can you say about their directions?
University Physics Volume 1
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 78 kg crate rests on a rough horizontal surface. The coefficient of static friction and coefficient of kinetic friction are 0.3 and 0.2, respectively. What would happen if the applied horizontal force is 300 N? Choices: It will remain at rest. The frictional force will be neglected. It will accelerate in the same direction as the horizontal force. It will accelerate in the opposite direction as the horizontal force.arrow_forwardPlease answer this, I need help.arrow_forwardA flatbed truck slowly tilts its bed upward to dispose of a 95.0@kg crate. For small angles of tilt the crate stays put, butwhen the tilt angle exceeds u = 23.3°, the crate begins to slide. What is the coefficient of static friction between thebed of the truck and the crate?arrow_forward
- A 235 N crate rests on a ramp; the maximum angle just before it slips is 27.8° with the horizontal. What is the coefficient of static friction between crate and ramp surfaces? Answer:arrow_forwardA(n) 19_kg mass is on an incline, with a = 4.5_m and b = 2.3_m. The coefficient of kinetic friction between the mass and the surface of the incline is µg = 0.36. If the mass is initially near the top of the incline and sliding down, then what is the mass's acceleration down the incline? m barrow_forwardA Smart Fortwo® car has a mass of 730 kg, which we assume on a flat surface is evenly distributed over its four tires. What is the maximum value of static friction on one tire if the coefficient of static friction between the tire and the road is 0.85? Note: In Iceland, though Smart cars are popular, there are special warnings about where to park them because the local winds can be strong enough to move the cars if they are not sheltered.arrow_forward
- A large crate is at rest on a horizontal floor. The coefficient of static friction between the crate and the floor is 0.400. A force F S is applied to the crate in a direction 30.0 above the horizontal. The minimum value of F required to get the crate to start sliding is 380 N. What is the mass of the crate?arrow_forwardAs a car goes up a hill, there is a force of friction between the road and the tires rolling on the road. The maximum force of friction is equal to: O the weight of the car. O the normal force of the road times the coefficient of kinetic friction O the weight of the car times the coefficient of kinetic friction. O zero. O the normal force of the road times the coefficient of static friction.arrow_forwardA block weighing 80N rests on a plane inclined at 20o to the horizontal. The coefficient of static friction is 0.25, while the coefficient of kinetic friction is 0.15. a) What is the minimum force |F|, parallel to the plane, that will prevent the block slipping down the plane? b) What is the minimum force |F| that will start the block moving up the plane? c) What force |F| is required to move the block up the plane at constant speed?arrow_forward
- A 397 N crate rests on a ramp; the maximum angle just before it slips is 33° with the horizontal. What is the coefficient of static friction between crate and ramp surfaces?arrow_forwardTwo boxes are connected by a massless string, passing over a massless frictionless pulley. The boxes remain at rest, with one hanging and the other one is 2.0 meters from the bottom of an inclined surface that makes an angle of 60° with the horizontal. The coefficients of kinetic friction and static friction between the left box and the plane are 0.15 and 0.30, respectively. 10 kg- 10 kg 60° Find the tension in the string. b. What is the magnitude of the frictional force acting on the box on the surface? When the string is cut, how much mechanical energy is lost as the left box slides the surface? d. а. с. Determine the speed of the left box when it reaches the bottom of the inclined surface.arrow_forward= A car (m 1900 kg) is parked on a road that rises 12° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Newton's Second Law of Motion: F = ma; Author: Professor Dave explains;https://www.youtube.com/watch?v=xzA6IBWUEDE;License: Standard YouTube License, CC-BY