If a curve with a radius of 88m is perfectly banked for a car traveling 75km/h, what
Question:
Step by Step Answer:
Since the curve is designed for 75 kmh traveling at a higher speed with the same radius means that m...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 coefficient of static friction between hard rubber and normal street pavement is about 0.90. On how steep a hill (maximum angle) can you leave a car parked?
-
The coefficient of static friction between Teflon and scrambled eggs is about 0.04. What is the smallest angle from the horizontal that will cause the eggs to slide across the bottom of a...
-
A car rounds a curve with a radius of 25 m at a speed of 20 m/s. What is the centripetal acceleration of the car?
-
On March 20, Harbor's petty cash fund of $100 is replenished when the fund contains $19 in cash and receipts for postage $40, supplies $26, and travel expense $15. Prepare the journal entry to record...
-
At a major university, exam scores, x, in a large enrollment course are normally distributed with a mean score of 78 and standard deviation of 6. If the test is curved so that the top 10% of scores...
-
The confidence interval given in Exercise 2 is based on df = 39, which is the smaller of n1 1 and n2 1. Use Formula 9-1 to find the number of degrees of freedom. Using the number of degrees of...
-
What are the four planning files used in production activity control? What information does each contain? LO.1
-
A small bead can slide without friction on a circular hoop that is in a vertical plane and has a radius of 0.100 m. The hoop rotates at a constant rate of 4.00 rev/s about a vertical diameter (Fig...
-
A mining company is considering a new project. Because the mine has received a permit, the project would be legali but it would cause significant harm to a nearby river. The firm could spend an...
-
Suppose that you have decided to fund a three-year liability with a portfolio consisting of positions in a two-year zero-coupon bond (2YR) and a four-year zero-coupon bond (4YR). The current interest...
-
Redo Example 5-3, precisely this time, by not ignoring the weight of the ball which revolves on a string 0.600m long. In particular, find the magnitude of FT, and the angle it makes with the...
-
A 1200-kg car rounds a curve of radius 67m banked at an angle of 12o. If the car is traveling at 95km/g, will a friction force be required If so, how much and in what direction?
-
A source of sonic oscillations with frequency Vo = 1700 Hz and a receiver are located at the same point. At the moment t = 0 the source starts receding from the receiver with constant acceleration w...
-
Outlines help in several ways: They help organize your thoughts so your speech is easy to follow. They keep you on track so you don't research beyond the scope of your speech. They give you a clear...
-
As a nurse leader you have to be able to have the willingness to be in a place of flexibility for change. Sometimes change can cause stress that can cloud our thoughts and ability to connect. Share a...
-
find T(625). I Given the recurrence relation T(n)=7T (n/5)+ 10n for n > 1 T (1)=1 Answer: (please write your answer here, add required space if needed)
-
2. (10 pts) The following program has many compilation errors. Underline each of the compilation errors, then rewrite each statement (even the correct ones) so that all these errors are fixed. Do not...
-
In this problem you will implement a variant of the List ADT. In particular you will implement the String-List ADT, in a concrete class called SListArray, based on the provided abstract Slist class....
-
Spot versus Forward Rates Suppose the spot and three-month forward rates for the yen are 80.13 and 78.96, respectively. a. Is the yen expected to get stronger or weaker? b. What would you estimate is...
-
Extend Algorithms 3.4 and 3.5 to include as output the first and second derivatives of the spline at the nodes.
-
In Exercises 1726, evaluate using Theorem 2 as necessary. THEOREM 2 Important Trigonometric Limits sin 0 lim 0-0 0 = 1 and lim 0-0 1- cos 0 0 = 0 =
-
Product Weight Sales Additional Processing Costs P 300,000 lbs. $ 245,000 $ 200,000 Q 100,000 lbs. 30,000 -0- R 100,000 lbs. 175,000 100,000 If joint costs are allocated based on relative weight of...
-
The projected benefit obligation was $380 million at the beginning of the year. Service cost for the year was $21 million. At the end of the year, pension benefits paid by the trustee were $17...
-
CVP Modeling project The purpose of this project is to give you experience creating a multiproduct profitability analysis that can be used to determine the effects of changing business conditions on...
Study smarter with the SolutionInn App