PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 14, Problem 53P
The sports car has a mass of 2.3 Mg, and while it is traveling at 28 m/s the driver causes it to accelerate at 5 m/s2 If the drag resistance on the car due to the wind is F0 = (0.3v2) N, where V is the velocity in m/s, determine the power supplied to the engine at this instant. The engine has a running efficiency ɛ = 0.68.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A sports car has a mass of 2 Mg and an engine efficiency of ɛ = 0.65. As the car moves
forward, the wind creates a drag resistance on the car defined by F, = 1.2v² N, where v is the
speed in m/s. The car accelerates at 5 m/s, starting from rest. Determine the engine's input
power when t=4 s.
A 1.28 Mg MINI accelerates at 6 m/s² starting from rest. If the drag resistance on the MINI due to the wind is FD = 10v N, where v is the speed in m/s, determine the power supplied to the motor when t = 5 s. The motor has a running efficiency of € = 0.68.
The jet is traveling at a speed of 500 mi/h, 30degrees with the horizontal
If the fuel is being spent at 4 lb/s , and the engine takes in air at 410 lb/s , whereas the exhaust gas (air and fuel) has a relative speed of 32700 ft/s , determine the acceleration of the plane at this instant. The drag resistance of the air is FD=(0.7v2)lb, where the speed is measured in ft/s. The jet has a weight of 15000 lb
Chapter 14 Solutions
PEARSON ETEXT ENGINEERING MECH & STATS
Ch. 14 - Prob. 1FPCh. 14 - If the motor exerts a constant force of 300 N on...Ch. 14 - If the motor exerts a force of F = (600 + 2s2) N...Ch. 14 - The 1.8-Mg dragster is traveling at 125 m/s when...Ch. 14 - When s = 0.5 m, the spring is unstretched and the...Ch. 14 - The 5-lb collar is pulled by a cord that passes...Ch. 14 - Prob. 2PCh. 14 - The 100-kg crate is subjected to the forces shown....Ch. 14 - Determine the required height h of the roller...Ch. 14 - When the driver applies the brakes of a light...
Ch. 14 - Prob. 7PCh. 14 - The force F, acting in a constant direction on the...Ch. 14 - The 2-lb brick slides down a smooth roof, such...Ch. 14 - The two blocks A and B have weights WA = 60 lb and...Ch. 14 - A small box of mass m is given a speed of v=14gr...Ch. 14 - Prob. 18PCh. 14 - If the cord is subjected to a constant force of F=...Ch. 14 - The crash cushion for a highway barrier consists...Ch. 14 - The 25-lb block has an initial speed of v0 = 10...Ch. 14 - At a given instant the 10-lb block A is moving...Ch. 14 - Prob. 25PCh. 14 - The catapulting mechanism is used to propel the...Ch. 14 - Prob. 27PCh. 14 - Prob. 31PCh. 14 - When the 150-lb skier is at point A he has a speed...Ch. 14 - Prob. 39PCh. 14 - Prob. 40PCh. 14 - If the contact surface between the 20-kg block and...Ch. 14 - Prob. 8FPCh. 14 - Prob. 9FPCh. 14 - Prob. 10FPCh. 14 - Prob. 11FPCh. 14 - Prob. 12FPCh. 14 - The jeep has a weight of 2500 lb and an engine...Ch. 14 - Determine the power Input for a motor necessary to...Ch. 14 - An automobile having a mass of 2 Mg travels up a 7...Ch. 14 - Prob. 45PCh. 14 - To dramatize the loss of energy in an automobile,...Ch. 14 - Escalator steps move with a constant speed of 0.6...Ch. 14 - Prob. 48PCh. 14 - The 1000-lb elevator is hoisted by the pulley...Ch. 14 - The sports car has a mass of 2.3 Mg, and while it...Ch. 14 - Prob. 54PCh. 14 - Prob. 55PCh. 14 - The 50-lb block rests on the rough surface for...Ch. 14 - The 2-kg pendulum bob is released from rest when...Ch. 14 - Prob. 14FPCh. 14 - Prob. 15FPCh. 14 - Prob. 16FPCh. 14 - The 75-lb block is released from rest 5 ft above...Ch. 14 - Prob. 18FPCh. 14 - The girl has a mass of 40 kg and center of mass at...Ch. 14 - The 30-lb block A is placed on top of two nested...Ch. 14 - The 5-kg collar has a velocity of 5 m/s to the...Ch. 14 - The 5-kg collar has a velocity of 5 m/s to the...Ch. 14 - Prob. 71PCh. 14 - The roller coaster car has a mass of 700 kg,...Ch. 14 - The roller coaster car has a mass of 700 kg,...Ch. 14 - Prob. 76PCh. 14 - The roller coaster car having a mass m is released...Ch. 14 - The spring has a stiffness k = 200 N/m and an...Ch. 14 - Prob. 79PCh. 14 - Prob. 80PCh. 14 - When s = 0, the spring on the firing mechanism is...Ch. 14 - If the mass of the earth is Me, show that the...Ch. 14 - A rocket of mass m is fired vertically from the...Ch. 14 - The 4-kg smooth collar has a speed of 3 m/s when...Ch. 14 - Prob. 85PCh. 14 - Prob. 87PCh. 14 - Prob. 90PCh. 14 - The roller coaster car has a speed of 15 ft/s when...Ch. 14 - Prob. 1RPCh. 14 - The small 2-lb collar starting from rest at A...Ch. 14 - Prob. 3RPCh. 14 - Prob. 4RPCh. 14 - Prob. 5RPCh. 14 - Prob. 6RPCh. 14 - Prob. 7RPCh. 14 - 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
- Given a 1400 kg car traveling along a route with an increasing vertical profile y=0.0003x^2. Determine the x-component of the car's velocity (m/s) and the total force (kN) if the constant velocity is 30 m/s and the distance is 210m. Hint: A line's slope is equal to tan theta, where theta is an angle measured from the x-axis.arrow_forwardOn its takeoff roll, the airplane starts from rest and accelerates according to a = ao - kv² where ao is the constant acceleration resulting from the engine thrust and -kv² is the acceleration due to aerodynamic drag. If að = 1.6 m/s², k = 0.000039 m ¹, and vis in meters per second, determine the design length of runway required for the airplane to reach the takeoff speed of 271 km/h if the drag term is (a) excluded and (b) included. V0 = 0 Answers: (a) Excluding drag, s= i (a) Including drag, S= i v=271 km/h m 3arrow_forwardA small projectile is fired vertically downward into a fluid medium with an initial velocity of 65 m/s. Due to drag resistance of the fluid, the projectile experiences a deceleration of a = (- 0.41v3) m/s2, where v is in m/s. Determine the projectile’s velocity and position 4 s after it is fired.arrow_forward
- If the mass is initially at rest and the force is F = 3t2 Newton where t is in seconds, what is the velocity of the mass at t = 6 s? There is no friction. 54 m/s 216 m/s 9 m/s 162 m/s 4 kgarrow_forwardA- The sports car has a mass of 2300 Kg and accelerates at 6 m/s, starting from rest. If the drag resistance on the car due to the wind is FD (10 v) N, where v is the velocity in m/s, determine the power supplied to the engine when t = 5.s. The engine has a running efficiency ofɛ=0.68. FRarrow_forwardThe sports car has a mass of 2.0 Mg and accelerates at 6 m/s², starting from rest. (Figure 1) Part A If the drag resistance on the car due to the wind is Fn = (10v) N, where v is the velocity in m/s, determine the power supplied to the engine when t = 5 s. The engine has a running efficiency of e = 0.68. Express your answer to three significant figures and include the appropriate units. μΑ P = Value Units Submit Request Answer Provide Feedback Figure 1 of 1 >arrow_forward
- A 1800-kg car enters an 7.8-percent downhill grade at a speed of 107 km/h. The driver applies her brakes to bring the car to a speed of 35 km/h in a distance of 0.30 km measured along the road. Calculate the energy loss Q (enter as a positive number) dissipated from the brakes in the form of heat. Neglect any friction losses from other causes such as air resistance. Answer: Q = i kJarrow_forwardOn its takeoff roll, the airplane starts from rest and accelerates according to a = ao - kv² where ao is the constant acceleration resulting from the engine thrust and -kv² is the acceleration due to aerodynamic drag. If ao = 1.8 m/s², k = 0.000064 m ¹, and vis in meters per second, determine the design length of runway required for the airplane to reach the takeoff speed of 206 km/h if the drag term is (a) excluded and (b) included. Vo = 0 Answers: (a) Excluding drag, s= i (a) Including drag. S= i v= 206 km/h m marrow_forwardThe 1.5 Mg car increases its speed uniformly from rest to 36 m/s in 8 s up the inclined road. Determine the maximum power that must be supplied by the engine, which operates with an efficiency of ε = 0.42. Also, find the average power supplied by the engine. Please show every single step of the process thanksarrow_forward
- Q1 A plow located on the front of a truck scoops up a liquid slush at the rate of 12 ft³/s and throws it off perpendicular to its motion, 0 = 90°. If the truck is traveling at a constant speed of 14 ft/s, determine the resistance to motion caused by the shoveling. The specific weight of the slush is y, = 5.5 lb/ft°. 0.25 marrow_forwardAn automobile having a mass of 2000 kg travels up a 7 degree slope at a constant speed of v = 100 km/h. If mechanical friction and wind resistance are neglected, determine the power developed by the engine if the automobile has an efficiency ε = 0.65arrow_forwardQ/ 1000 kg car requires eight seconds to change its speed from 0 km/h to 140 km/h. What is the powered delivered by the Engine during this time?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
Dynamics - Lesson 1: Introduction and Constant Acceleration Equations; Author: Jeff Hanson;https://www.youtube.com/watch?v=7aMiZ3b0Ieg;License: Standard YouTube License, CC-BY