Fox And Mcdonald's Introduction To Fluid Mechanics
9th Edition
ISBN: 9781118921876
Author: Pritchard, Philip J.; Leylegian, John C.; Bhaskaran, Rajesh
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 1, Problem 4P
Very small particles moving in fluids are known to experience a drag force proportional to speed. Consider a particle of net weight W dropped in a fluid. The particle experiences a drag force, FD = kV, where V is the particle speed. Determine the time required for the particle to accelerate from rest to 95 percent of its terminal speed, Vt, in terms of k, W, and g.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A stationary object in a flow of speed 27 m/s produces a drag force of 13 N. The flow speed is then changed to 25 m/s. What will be the drag force if the
Drag Coefficient and density are assumed constant?
Give your answer in Newtons to 2 decimal places.
A 3.1 kg object is initially at rest and is experiencing a net force of magnitude 4.7e^-t/2 N. As time approaches infinity, notice that the net force decays toward 0 N, which tells us that the acceleration is also dropping to 0 m/s^2 (and so the velocity is leveling off to a terminal speed). What is the terminal speed? (Ans.= 3.0 m/s)
An object falling vertically through the air is subjected to viscous resistance as well as to the force
of gravity. Assume that an object with mass m is dropped from a height so and that the height of the
object after t seconds is
mg
s(1) = 8o
+
where g = 32.17 fus? and k represents the coefficient of air resistance in Ib-s/ft. Suppose so = 300 ft,
m = 0.25 lb, and k = 0.1 lb-s/ft. Find, to within 0.01 s, the time it takes this quarter-pounder to hit the
ground.
Hint: At t=0, s=s(0)=300ft. On the ground s=0. Using Fixed point iteration method with
initial guess t0=3 sec, find the solution up to t7. Draw a graph in mathematica as well.
Chapter 1 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
Ch. 1 - A number of common substances are Some of these...Ch. 1 - Give a word statement of each of the five basic...Ch. 1 - The barrel of a bicycle tire pump becomes quite...Ch. 1 - Very small particles moving in fluids are known to...Ch. 1 - In a combustion process, gasoline particles are to...Ch. 1 - In a pollution control experiment, minute solid...Ch. 1 - A rocket payload with a weight on earth of 2000 lb...Ch. 1 - A cubic metre of air at 101 kPa absolute and 15C...Ch. 1 - Calculate the specific weight, specific volume,...Ch. 1 - For Problem 1.6, find the distance the particles...
Ch. 1 - A sky diver with a mass of 70 kg jumps from an...Ch. 1 - The English perfected the longbow as a weapon...Ch. 1 - For each quantity listed, indicate dimensions...Ch. 1 - The density of a sample of sea water is 1.99...Ch. 1 - A pump is rated at 50 hp. What is the rating in kW...Ch. 1 - A fluid occupying 3.2m3 has a mass of 4 Mg....Ch. 1 - If a power plant is rated at 2000 MW output and...Ch. 1 - For each quantity listed, indicate dimensions...Ch. 1 - Derive the following conversion factors: (a)...Ch. 1 - Express the following in SI units: (a) 5 acreft...Ch. 1 - Express the following in SI units: (a) 100...Ch. 1 - Express the following in BG units: (a) 50 m2 (b)...Ch. 1 - While youre waiting for the ribs to cook, you muse...Ch. 1 - Derive the following conversion factors: (a)...Ch. 1 - The kilogram force is commonly used in Europe as a...Ch. 1 - From thermodynamics, we know that the coefficient...Ch. 1 - The maximum theoretical flow rate (slug/s) through...Ch. 1 - The mean free path of a molecule of gas is the...Ch. 1 - A container weighs 3.5 lbf when empty. When filled...Ch. 1 - A parameter that is often used in describing pump...Ch. 1 - Calculate the density of standard air in a...Ch. 1 - The mass of the standard American golf ball is...Ch. 1 - A can of pet food has the following internal...Ch. 1 - The mass flow rate in a water flow system...Ch. 1 - The mass flow rate of water in a tube is measured...Ch. 1 - The mass of the standard British golf ball is 45.9...Ch. 1 - From Appendix A, the viscosity (Ns/m2) of water at...Ch. 1 - An enthusiast magazine publishes data from its...Ch. 1 - The height of a building may be estimated by...Ch. 1 - An American golf ball is described in Problem 1.32...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Based on the size and shape of the product, describe at least three reasonable ways in which the component coul...
DeGarmo's Materials and Processes in Manufacturing
In each case, express the shear and moment functions In terms of x, and then draw the shear and moment diagrams...
Mechanics of Materials
The square deforms into the position shown by the dashed lines. Determine the shear strain at each of its corne...
Mechanics of Materials (10th Edition)
Repeat Problem 1.54 if the flow inside the apparatus is liquid water (=1000kg/m3) instead of air. Find the pres...
Fundamentals Of Thermodynamics
3.15 The resultant of the concurrent force system shown has a magnitude of 300 lb acting vertically upward alon...
Applied Statics and Strength of Materials (6th Edition)
Determine the tension developed in cables AB, AC, and AD required for equilibrium of the 300-lb crate.
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The pilot of a Boeing 767 determines that a total of 22,300 kilograms of jet fuel is needed to fly from Montreal to Edmonton. A floatstick check finds that there is 11,549 litres of fuel already in the tanks. How much fuel, expressed in litres, must be added to the tanks? The density of jet fuel varies with temperature. For the prevailing conditions take the density of the jet fuel to be 0.803 kg/L or equivalently 1.77 lb/L.arrow_forwardDrop-load (I)This exercise is part of a series of problems aimed at modelling a situation by progressively refining our model to consider more and more parameters. This progressive approach is very close to what professional scientists do! Context We want to lower a suspended load in a controlled way so that it hits the ground with a speed whose modulus is not too great. To do this, the suspended load (B) is connected by a rope passing through a pulley to another mass (A), which can move on a horizontal surface. Information The masses of the charges A and B are known.The pulley is a ring of mass mp and radius R that can rotate without friction.The surface on which mass A is placed is horizontal.There is no friction between mass A and the surface on which it is placed.The string attached to mass A is perfectly parallel to the surface on which the mass rests. SchematizationDraw a diagram of each object that interests us. Draw x- and y-axes for each object. Draw and name each force…arrow_forwardA fixed control volume has three one-dimensional boundary sections, as shown. The flow within the control volume is steady. The flow properties at each section are tabulated below. Find the rate of change of energy of the system which occupies the control volume at this instant. Section Туре P. kg/m V, m/s A, m? e, J/kg 1 Inlet 800 5.0 2.0 300 Inlet 800 8.0 3.0 100 3 Outlet 800 17.0 2.0 150 CVarrow_forward
- How much energy would it take to raise a can of soda (m = 350 grams) to average cruising altitude (35,000 ft)? Our textbook states that a gallon of gasoline contains 1.2×108 Joules of energy. Assuming 100% efficiency, how many gallons of gasoline would it take to raise the can of soda to 35,000 ft? A calorie is the amount of energy needed to raise the temperature of 1 gram of water by 1 Celsius degree (4.186 J). A nutritional Calorie is actually 1000 calories (1 Cal = 1 kcal). How many Calories of energy does it take to raise the can of soda to cruising altitude? Given that a can of Coke is about 140 Calories, how many cans of coke does it take to raise a can of coke to cruising altitude?arrow_forwardPravinbhaiarrow_forwardAn object is traveling in the air with a velocity of 29.3 m/s (South) when the object encounters a super strong and stretchy massless netting. This netting applies a constant force of 47.6 N (North) on the object which has a mass of 68.0 kg. After the netting has acted for a time of 23.7 s, what is the final velocity of the object? Ignore all effects of air resistance. Select one: 12.7 m/s (North) 45.9 m/s (North) 12.7 m/s (South) O d. 45.9 m/s (South) a. b. C.arrow_forward
- A basketball player drops a 0.5 kg basketball vertically so that it is traveling at 5.0 m/s when it reaches the floor. The ball rebounds upward at a speed of 3.2 m/s. The ball is in contact with the ground for a time of 10 ms. Draw a velocity vs time graph for the ball and an impulse-momentum bar chart where the initial state is right before the ball hits the ground and the final state is right after the ball hits the ground.arrow_forwardGlobal warming will produce rising sea levels partly due to melting ice caps and partly due to the expansion of water as average ocean temperatures rise. To get some idea of the size of this effect, calculate the change in length, Ah (in mm), of a column of water 1.5 km high for a temperature increase of 1.2 °C.Assume the column is not free to expand sideways. As a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to the surface can expand sideways onto land, and only to a limited degree. As another approximation, neglect the fact that ocean warming is not uniform with depth. Properties of water: 3 = 210 x 10 /C. c= 4186 J/kg - °C, L; = 334 kJ/kg, Le = 2256 kJ/kg Enter you answer below (to the nearest mm): Ah (in mm) = Type your answer.arrow_forwardA ball is released from rest and rolls down an inclined plane, requiring 4.5seconds to cover a distance of 100 ft. What is the ball’s acceleration in cm persquare seconds?arrow_forward
- Q2 pleasearrow_forwardA computer is protected against impact by foam packaging (spring stiffness, k = 100 N/cm; mass, m = 11 kg, including packaging). The maximum acceleration that the computer can withstand on impact with a hard surface is 4g. At the maximum acceptable impact acceleration, how much does the packaging compress upon impact? Give the answer in cm. What is the maximum height, h, in cm that the case can fall from without damaging the computer?arrow_forwardAn 80 kg block sits on top of a hill with height h1 = 3 metres and slides down to a 3 metres long muddy flat section with a coefficient of kinetic friction, μk = 0.20. The block continues up the frictionless ramp with an angle of θ = 45°. What is the velocity of the block in m/s at the bottom of the first hill?How much energy is ‘lost’ by the block during the muddy section (answer in Joules)?What height, h2, in metres does the block reach up the ramp after the muddy section before coming to a complete stop?Now consider the ramp after the muddy section to have a coefficient of kinetic friction, μk = 0.3. What height does the block reach in metres?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Unit Conversion the Easy Way (Dimensional Analysis); Author: ketzbook;https://www.youtube.com/watch?v=HRe1mire4Gc;License: Standard YouTube License, CC-BY