The coefficient of kinetic friction between a suitcase and the floor is 0.272. If the suitcase has
Question:
The coefficient of kinetic friction between a suitcase and the floor is 0.272. If the suitcase has a mass of 71.5 kg, how far can it be pushed across the level floor with 642 J of work?
Step by Step Answer:
The applied force is equal to the force of ...View the full answer
Related Video
Static friction and kinetic friction are two types of friction that occur when two objects are in contact with each other. Static friction is the force that must be overcome to initiate motion between two surfaces that are in contact with each other but are not moving relative to each other. It is caused by the interlocking of rough surfaces at the microscopic level, and it increases as the force pushing the surfaces together increases. Once motion between the surfaces starts, the static friction is no longer present. Kinetic friction, also known as sliding friction, is the force that opposes the motion of two surfaces that are in contact with each other and are moving relative to each other. It is caused by the rubbing of the surfaces against each other and the resistance of the molecules in the surfaces to being moved. Kinetic friction is generally less than static friction, but it can still be a significant force, especially at high speeds. Both static and kinetic friction can be quantified using a coefficient of friction, which is a dimensionless number that represents the ratio of the frictional force between two surfaces to the normal force (the force perpendicular to the surfaces). The coefficient of static friction is typically greater than the coefficient of kinetic friction for a given pair of surfaces, because it takes more force to overcome the interlocking of the surfaces at rest than to maintain motion once it has started.
Students also viewed these Mechanics questions
-
The 20-lb cart B is supported on rollers of negligible size, if a 10-lb suitcase A is thrown horizontally on it at 10ft/s, determine the length of time that A slides relative to B, and the final...
-
The 20-lb cart B is supported on rollers of negligible size. If a 10-lb suitcase A is thrown horizontally on it at 10 ft/s, determine the time t and the distance B moves before A stops relative to B....
-
If the coefficient of kinetic friction between a 35-kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is...
-
Find the struggles faced by business (printed t-shirts) with suppliers? Explain what would be the communication plan for each stakeholder and how you'll implement the decision you have taken?
-
Option Price and Interest Rates suppose the interest rate on T-bills suddenly and unexpectedly rises. All other things being the same, what is the impact on call option values? On put option values?
-
San Francisco led the movement to ban plastic shopping bags and is now proposing to ensure people have access to safe high-quality tap water and ban bottled water. A supporter of the ban says The...
-
A system of three parallel reactions (Trambouze and Piret, 1959) involves the following reaction scheme: \[\mathrm{A} \xrightarrow{k_{1}} \mathrm{~B} \quad \mathrm{~A} \xrightarrow{k_{2}} \mathrm{C}...
-
A sinking fund can be set up in one of two ways. Discuss the advantages and disadvantages of each procedure from the viewpoint of both the firm and its bondholders.
-
Explain the importance of thermodynamic modeling in process simulation. How do advanced equations of state, like the Peng-Robinson or Soave-Redlich-Kwong models, influence the prediction of phase...
-
Initially, the Republic of Gorgonzola has no commercial banking system. To make trading easier and eliminate the need for barter, the government directs the central bank of Gorgonzola to put into...
-
The work W0 is required to accelerate a car from rest to the speed v0. How much work is required to accelerate the car (a) From rest to the speed v0/2 (b) From v0/2 to v0?
-
After a tornado, a 0.55-g straw was found embedded 2.3 cm into the trunk of a tree. If the average force exerted on the straw by the tree was 65 N, what was the speed of the straw when it hit the...
-
The financial statements of Eastern Platinum Limited (Eastplats) are presented in Appendix A at the end of this book. Instructions (a) What amounts did Eastplats report for total inventories in its...
-
In cognitive learning theory, it is assumed that people develop a(n) __________about receiving a reinforcer when they behave a certain way.
-
How might the availability heuristic contribute to prejudices based on race, age, and gender? Can awareness of this heuristic prevent this from happening?
-
In the peripheral nervous system, the __________division controls voluntary movements, whereas the __________division controls organs that keep us alive and function without our awareness.
-
Weber discovered that for a difference between two stimuli to be perceptible, the stimuli must differ by at least a __________proportion.
-
How does nonverbal behavior relate to the expression of emotions?
-
In this group activity, you will compare the accounting for bonds payable with two types of bond investments: long-term investment in bonds, and held-for-trading investment in bonds. By comparing and...
-
If a test has high reliability. O the test measures what the authors of the test claim it measures O people who take the same test twice get approximately the same scores both times O scores on the...
-
A very early, simple satellite consisted of an inflated spherical aluminum balloon 30 m in diameter and of mass 20kg. Suppose a meteor having a mass of 7.0 kg passes within 3.0 m of the surface of...
-
A uniform solid sphere of radius R produces a gravitational acceleration of ar on its surface. At what distance from the sphere's center are there points (a) Inside and (b) Outside the sphere where...
-
A projectile is fired vertically from Earth's surface with an initial speed of 10 km/s neglecting air drag how far above the surface of Earth will it go?
-
Discuss the dynamic organization of the cytoskeleton and its pivotal role in cellular motility, intracellular transport, and structural integrity .
-
Would you support the idea of a government issued Digital currency? Why ? and why not?
-
To protect her savings against further inflation and to help her prepare for a healthy financial future, Hanna Lind deposits $9,100 in an investment account earning 6% interest compounded quarterly....
Study smarter with the SolutionInn App