PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 15, Problem 12P
For a short period of time, the frictional driving force acting on the wheels of the 2.5-Mg van is FD = (600t2) N, where t is in seconds. If the van has a speed of 20 km/h when t = 0, determine its speed when t = 5 s.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
3. The ball B has a mass of 10 kg and is attached to the end of a rod whose mass may be
neglected. If the rod is subjected to a torque M=(3t2 + 5t + 2) N*m, where t is in seconds,
determine the speed of the ball when t=3s. The ball has a speed v= 2 m/s when t= 0s
1.5 m
The motor M of the hoist operates with an efficiency of ε = 0.7. Determine the power in watt (W) that must be supplied to the motor to lift the crate C (250kg) at the instant point P on the cable has an acceleration of 3 m/s2, and a velocity of 2 m/s. Please see details below. Rounding numbers to 2 decimal places at the end.
Gravity (the acceleration due to gravity) is 9.81 meters per second squared. g = 9.81 m/s2
The ball B has a mass of 5 kg and is attached to the end of a rod whose mass can be neglected. If the shaft
is subjected to a torque, which varies with time as shown in the graph, determine the time required (in
seconds) for the ball to reach a speed of 8 m/s. The ball has a speed Vo=2 m/s when t=2s.
M(N-m)
M
1.5m
ANS:8.13 S
B
Chapter 15 Solutions
PEARSON ETEXT ENGINEERING MECH & STATS
Ch. 15 - The 0.5kg ball strikes the rough ground and...Ch. 15 - Prob. 2FPCh. 15 - Prob. 3FPCh. 15 - The wheels of the 1.5-Mg car generate the traction...Ch. 15 - Prob. 5FPCh. 15 - If the coefficient of kinetic friction between the...Ch. 15 - Prob. 3PCh. 15 - Each of the cables can sustain a maximum tension...Ch. 15 - Crates A and B weigh 100 lb and 50 lb,...Ch. 15 - Prob. 8P
Ch. 15 - Prob. 9PCh. 15 - During operation the jack hammer strikes the...Ch. 15 - For a short period of time, the frictional driving...Ch. 15 - The 2.5-Mg van is traveling with a speed of 100...Ch. 15 - Prob. 14PCh. 15 - The towing force acting on the 400-kg safe varies...Ch. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - If it takes 35 s for the 50-Mg tugboat to increase...Ch. 15 - Prob. 23PCh. 15 - The balloon has a total mass of 400 kg including...Ch. 15 - Prob. 26PCh. 15 - Prob. 30PCh. 15 - Prob. 7FPCh. 15 - The cart and package have a mass of 20 kg and 5...Ch. 15 - The 5-kg block A has an initial speed of 5 m/s as...Ch. 15 - Prob. 10FPCh. 15 - Prob. 11FPCh. 15 - The cannon and support without a projectile have a...Ch. 15 - The 5-Mg bus B is traveling to the right at 20...Ch. 15 - Prob. 36PCh. 15 - A railroad car having a mass of 15 Mg is coasting...Ch. 15 - A ballistic pendulum consists of a 4-kg wooden...Ch. 15 - Prob. 39PCh. 15 - Prob. 43PCh. 15 - Prob. 44PCh. 15 - Prob. 45PCh. 15 - The 30-Mg freight car A and 15-Mg freight car B...Ch. 15 - Blocks A and B have masses of 40 kg and 60 kg,...Ch. 15 - Block A has a mass of 5 kg and is placed on the...Ch. 15 - Solve Prob. 15-53 if the coefficient of kinetic...Ch. 15 - Prob. 56PCh. 15 - Prob. 13FPCh. 15 - Prob. 14FPCh. 15 - The 30-lb package A has a speed of 5 ft/s when it...Ch. 15 - The ball strikes the smooth wall with a velocity...Ch. 15 - Prob. 17FPCh. 15 - Prob. 18FPCh. 15 - Prob. 58PCh. 15 - Prob. 59PCh. 15 - Prob. 61PCh. 15 - Prob. 62PCh. 15 - Prob. 63PCh. 15 - Prob. 64PCh. 15 - A 1-lb ball A is traveling horizontally at 20 ft/s...Ch. 15 - Prob. 69PCh. 15 - Prob. 73PCh. 15 - Two smooth disks A and B each have a mass of 0.5...Ch. 15 - Prob. 75PCh. 15 - The cue ball A is given an initial velocity (vA)1...Ch. 15 - Prob. 78PCh. 15 - Prob. 79PCh. 15 - A ball of negligible size and mass m is given a...Ch. 15 - Prob. 81PCh. 15 - The 20-lb box slides on the surface for which k =...Ch. 15 - Prob. 84PCh. 15 - Prob. 85PCh. 15 - Prob. 90PCh. 15 - Prob. 92PCh. 15 - Disks A and B have a mass of 15 kg and 10 kg,...Ch. 15 - Prob. 19FPCh. 15 - Prob. 20FPCh. 15 - Initially the 5-kg block is moving with a constant...Ch. 15 - Prob. 22FPCh. 15 - Prob. 23FPCh. 15 - Prob. 24FPCh. 15 - Determine the angular momentum HO of the 6-lb...Ch. 15 - Determine the angular momentum HP of the 6-lb...Ch. 15 - Prob. 96PCh. 15 - Determine the angular momentum Hp, of each of the...Ch. 15 - Prob. 98PCh. 15 - Determine the angular momentum Hp of the 3-kg...Ch. 15 - The 800-lb roller-coaster car starts from rest on...Ch. 15 - The 800-lb roller-coaster car starts from rest on...Ch. 15 - If the rod of negligible mass is subjected to a...Ch. 15 - The amusement park ride consists of a 200-kg car...Ch. 15 - An earth satellite of mass 700 kg is launched into...Ch. 15 - Prob. 115PCh. 15 - Prob. 116PCh. 15 - Prob. 119PCh. 15 - The gauge pressure of water at A is 150.5 kPa....Ch. 15 - Prob. 121PCh. 15 - The fountain shoots water in the direction shown....Ch. 15 - A plow located on the front of a locomotive scoops...Ch. 15 - Prob. 124PCh. 15 - Water is discharged from a nozzle with a velocity...Ch. 15 - Prob. 127PCh. 15 - Prob. 128PCh. 15 - Sand drops onto the 2-Mg empty rail car at 50 kg/s...Ch. 15 - Prob. 133PCh. 15 - A rocket has an empty weight of 500 lb and carries...Ch. 15 - Prob. 135PCh. 15 - Prob. 138PCh. 15 - The missile weighs 40 000 lb. The constant thrust...Ch. 15 - Prob. 140PCh. 15 - Prob. 1RPCh. 15 - Prob. 2RPCh. 15 - Prob. 3RPCh. 15 - Prob. 4RPCh. 15 - The 200-g projectile is fired with a velocity of...Ch. 15 - Block A has a mass of 3 kg and is sliding on a...Ch. 15 - Two smooth billiard balls A and B have an equal...Ch. 15 - Prob. 8RP
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
- 1. The 400-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is F = (3200f²) N, where t is in seconds. If the car has an initial velocity v₁ = 2 m/s at s = 0 and t=0, determine the distance it moves up the plane when t = 2 s. 17 15 v₁ = 2 m/sarrow_forward2- Each ball has a negligible size and a mass of 5 kg and is attached to the end of a rod whose mass may be neglecte. If the rod is subjected to a torque M=t2+2) N.m. where tis in seconds, determine the speed of each ball when t = 2 s. Each ball has a speed v = 4m / s when t = 0 .arrow_forwardThe horizontal force P = 8 − 2t lb (t is the time measured in seconds)is applied to the 5-lb collar that slides along the inclined rod. At time t = 0, the position coordinate of the collar is x = 0, and its velocity is v0 = 10 ft/s directed down the rod. Find the time and the speed of the collar when it returns to the position x = 0 for the first time. Neglect friction.arrow_forward
- At the instant when a force of F = (8t2) Ib is applied on the 10 Ib block, the block was moving at 4 ft/s. Assuming the coefficient of friction between the block and the surface is Hk = 0.2, determine the velocity of the block when it moves s = 30 ft. v = 4 ft/s F = (8f) lbarrow_forwardM = (² + 2) N · m 0.5 m Each ball has a negligible size and their respective mass are 7-kg and 3-kg. Each ball is attached to the end of a rod whose mass may be neglected. If the rod is subjected to a torque M=t2+4 N.m, where t is in seconds, detemrine the speed of each ball when t=1. The initial speed of each baal at t=Os is 1 m/s.arrow_forwardThe 11-lb block has a velocity of 3.83 ft/s when the force of F = (257.6t2) lb·ft/sec2 is applied. Determine the acceleration of the block when t = 2.08 s. The coefficient of kinetic friction at the surface is μk = 0.21. Answer is in ft/sec2.arrow_forward
- Determine the constant force “f” w/c must be applied to the cord in order to cause the 39lb block to have a speed of 22 ft/a when it has been displaced 0.5 ft upward starting from the rest.arrow_forwardeach of three barges has a mass of 30 Mg.Whereas the tugboat has a mass of 12 Mg.As the barges are being pulled forward with a constant velocity of 4 m/s. the tugboat must overcome the frictional resistance of the water,which is 2kN for each barge and 1.5kN for the tugboat.if the cable between A and B breaks determine the acceleration in m/s^2 of the tugboat.arrow_forward2. The block (A) has a mass of 10 kg and the coefficient of dynamic friction between the block and the ground is μ = 0.3. Block B has a mass of 15 kg and slides down a frictionless pole. If the blocks start from at x=0 calculate: a. The distance block A moves after block B has fallen 4 m b. The relationship between the speed of A and the speed of B c. The work done by friction on block A d. The velocity of block B. B 2m Aarrow_forward
- Q: If the rod of negligible mass is subjected to a couple moment of M (30t2)N m and the engine of the car supplies a traction force of F = (15t)N to the wheels, where t is in seconds, determine the speed of the car at the instant t = 8 s. The car starts from rest. The total mass of the car and rider is %3D 200 kg. Neglect the size of the car. 6 m M (30r) N-marrow_forwardUnder the man's pushing force P= 35.0 lb, the uniform cabinet is sliding on the ground with a constant acceleration of a. If the uniform cabinet has weight of 150 lb, and the coefficient of kinetic friction between the cabinet and the ground is μk = 0.13, determine acceleration a in ft/s². Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 32.2 ft/s². Your Answer: Answer P 4 ft A ←1 ft―1 ft- G 3.5 ft Barrow_forwardA 0.8 Mg car travels over the hill having the shape of a parabola. If the driver maintains a constant speed of 9 m/s, determine both the resultant normal force and the resultant frictional force that all the wheels of the car exert on the road at the instant it reaches A. y = 20 (1 – À00 -80 m-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 PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering 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
Types Of loads - Engineering Mechanics | Abhishek Explained; Author: Prime Course;https://www.youtube.com/watch?v=4JVoL9wb5yM;License: Standard YouTube License, CC-BY