A small block of mass m is given and initial speed vo up a ramp inclined at
Question:
Step by Step Answer:
We derive two expressions for acceleration one from the kinematics ...View the full answer
University Physics With Modern Physics
ISBN: 978-0073513881
2nd edition
Authors: Wolfgang Bauer, Gary Westfall
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
-
A small block of mass m is in contact with the inner wall of a large hollow cylinder. Assume the coefficient of static friction between the object and the wall of the cylinder is s. Initially, the...
-
A small block of mass M is released from rest at the top of the curved frictionless ramp shown above. The block slides down the ramp and is moving with a speed 3.5v, when it collides with a larger...
-
A wooden block of mass M resting on a frictionless horizontal surface is attached to a rigid rod of length θ and of negligible mass (Fig. P11.35) The rod is pivoted at the other end. A bullet...
-
Solve the following general system by inverting the coefficient matrix and using Theorem 1.6.2. x1 + 2x2 + 3x3 = b1 x1 - x2 + x3 = b2 x1 + x2 = b3 (a) b1= - 1, b2 = 3, b3 = 4 (b) b1 = - 1, b2 = -1,...
-
(a) Find limx60 S(x), if it exists. (b) What does this limit predict? (c) Does this prediction seem plausible? Explain. The percent of obese American adults who are severely obese can be modeled by...
-
Evaluate the following statement: The Keynesian assumption of wage and price rigidity best corresponds to the steepest portion of the aggregate supply curve where factories are operating well below...
-
A gas engine working on ideal Otto cycle has a compression ratio of 6.1. The pressure and temperature at the commencement of compression are 1 bar and \(27^{\circ} \mathrm{C}\). The heat supplied...
-
On January 1, 2015, the City of Hastings created a solid waste landfill that it expects to reach capacity gradually over the next 20 years. If the landfill were to be closed at the current time,...
-
15 m The parabolic cable shown carries a uniform horizontal load of w=471 kg/m. Calculate the reaction at A in kN W a B 50 m 7.5 m
-
Don and Joe went into business together as equal co-owners. Joe had a lot of money but l no business sense and Don had the "know how". Don and Joe each invested $10,000 and Joe loaned the business...
-
A coffee cup on the dashboard of a car slides forward on the dash when the driver decelerates from 45km/h to rest in 3.5s or less, but not if he decelerates in a longer time. What is the coefficient...
-
The 75 kg climber in Figure is supported in the chimney by the friction forces exerted on his shoes and back. The static coefficients of friction between his shoes and the wall, and between his back...
-
A machine that stuffs a cheese-filled snack product can be adjusted for the amount of cheese injected into each unit. A simple random sample of 30 units is selected, and the average amount of cheese...
-
Describe the schedule of reinforcement involved in purchasing lottery tickets. Explain how contingencies sustain weekly purchases of lottery tickets and how other contingencies support the purchase...
-
how well Amazon.com is currently performing and give examples of how it has used OB to enhance its effectiveness.
-
Using 'Octave' draw the function -Sin(t) for t from to 2. Label both axis properly. Paste the graph and table of values in the assignment. Then calculate following. 1 2 C = [-sin(t)] dt, C2 Which...
-
Listed below are a company's monthly unit costs to manufacture and market a particular product. The company must decide to continue making the product or buy it from an outside supplier. The supplier...
-
What are some relevant recommendations about Coca-Cola's Planning, Design, and Implementation of an Enterprise Resource Planning System that other companies can apply to their own initiatives?
-
Which of the following affects the present value of an investment? a. The interest rate b. The number of time periods for the investment c. Whether the investment proceeds will be paid in one lump...
-
Assume a simple Keynesian depression economy with a multiplier of 4 and an initial equilibrium income of $3,000. Saving and investment equal $400, and assume full employment income is $4,000. a. What...
-
Evaluate in terms of the constant a. lim xa (x + a) - 4x x - a
-
BRAND SELF COLLATERAL What is your brand name? What is your logo (YOU MUST DESIGN IT What is your brand slogan (the phrase that defines your brand and yourself) What are celebrity spokesperson is...
-
Amidst the burgeoning complexity of contemporary business landscapes, how do advanced organizations employ sophisticated design principles and ergonomic considerations to optimize physical workspaces...
-
JavaScript Assignment 1: Personal Web site This assignment is linked to your final project. Thus far, you have completed a total of 4 sections as part of the Final Project. You have created a basic...
Study smarter with the SolutionInn App