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 15, Problem 139P
The missile weighs 40 000 lb. The constant thrust provided by the turbojet engine is T = 15 000 lb. Additional thrust is provided by two rocket boosters B. The propellant in each booster is burned at a constant rate of 150 lb/s, with a relative exhaust velocity of 3000 ft/s. If the mass of the propellant lost by the turbojet engine can be neglected, determine the velocity of the missile after the 4-s burn time of the boosters. The initial velocity of the missile is 300 mi/h.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The missile weighs 47000 lb. The constant thrust provided by the turbojet engine isT = 18000 lb. Additional thrust is provided by two rocket boosters B. The propellant ineach booster is burned at a constant rate of 175 lb/s, with a relative exhaust velocity of 2000f t/s. If the mass of the propellant lost by the turbojet engine can be neglected, determinethe velocity of the missile after the 6 s burn time of the boosters. The initial velocity ofthe missile is 150 mi/h. Using your integration procedure from the previous labs solve thisproblem with n = 5, n = 10 and n = 100.
The feasibility of a one-passenger VTOL (vertical takeoff and landing) craft is under review. The preliminary design calls for a small
engine with a high power-to-weight ratio driving an air pump that draws in air through the 62° ducts with an inlet velocity v = 45 m/s at
a static gage pressure of -1.246 kPa across the inlet areas totaling 0.1355 m². The air is exhausted vertically down with a velocity u =
408 m/s. For a 82-kg passenger, calculate the maximum net mass m of the machine for which it can take off and hover. (See Table D/1
for air density.)
62
F
Answer: m =
Ti
TYP 6274
kg
The jet has a speed of 1260 km/hkm/h when it is flying horizontally. Air enters the intake scoop S� at the rate of 52 m3/sm3/s. The engine burns fuel at the rate of 1.85 kg/skg/s, and the gas (air and fuel) is exhausted relative to the plane with a speed of 2330 km/hkm/h. The plane has a mass of 8 MgMg. Assume that the air has a constant density of ρa�� = 1.112 kg/m3kg/m3. (Figure 1)
Determine the drag exerted on the plane by air resistance.
Express your answer to three significant figures and include the appropriate units.
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
- thrust can be approximated by the expression T = An aircraft of mass 240,000kg is powered by a jet engine whereby the horizontal 198 +2t², where T is the thrust in kN and t is the time in seconds. If the aircraft has an initial horizontal velocity of 120ms ¹, determine the new horizontal velocity after 12s.arrow_forward(1) During a rockburst (violent rock failure underground), a rock block was ejected as a projectile from the tunnel wall at a height of 1.5 m and the block landed on the floor at a distance of 2.5 m from the left wall. Determine the ejection velocity ve for 0 = 20°. 1.5 m 2.5 marrow_forwardWhat is conservation of linear momentum?arrow_forward
- Principle of Linear Impulse and Momentum for a System of Particles To apply the principle of linear impulse and momentum to a system of particles. Integrating the equation of motion, as applied to all particles in a system, yields ∑mi(vi)1+∑∫t2t1Fidt=∑mi(vi)2 where mi is the ith particle's mass, vi is the ith particle's velocity, and Fi is the external force that acts on the ith particle. This relationship states that the sum of the initial linear momenta, at time t1, and the impulses of all the external forces acting between times t1 and t2 is equal to the sum of the linear momenta of the system, at time t2. If the system has a mass center, G, the expression becomes m(vG)1+∑∫t2t1Fidt=m(vG)2 This expression allows the principle of linear impulse and momentum to be applied to a system of particles that is represented as a single particle. Two blocks, each of mass m = 6.90 kg , are connected by a massless rope and start sliding down a slope of incline θ = 36.0 ∘ at t=0.000 s. The…arrow_forward5. The jet engines on an airplace must develop a certain amount of power to propel the airplane through the air with a speed of 280 km/h at a cruising altitude of 4,000 m. By what percent must the power be increased if the same airplane were to maintain its 280 km/h flight speed at 500 m altitude?arrow_forwardA pump draws water from a reservoir A and lifts it to reservoir B. The loss of head from A to point 1 is 3 times the velocity head in the 150 mm pipe and the loss of head from point 2 to B is 25 times the velocity head in the 100 mm pipe. When reservoir A is a starting point at elevation 0 and connected to point 1, where point 1 is also connected with a pump and point 2 is at elevation 20 m. which is connected with a pump that travels to reservoir B at elevation of 240 m. The discharge is 25 liters/sec, compute the pressure head at point 1. a. 268 m b. 134 m c. 19.74 m d. 39.48 marrow_forward
- Each of the two stages A and B of the rocket has a mass of 2 M-g (M=mega) when their fuel tanks are empty. They each carry 300 kg of fuel and are capable of consuming it at a rate of 50 kg/s and eject it with a constant velocity of 2500 m/s, measured with respect to the rocket. The rocket is launched vertically from rest by first igniting stage B. Then stage A is ignited immediately after all the fuel in B is consumed and A has separated from B Neglect drag resistance and the variation of the rocket’s weight with altitude. Given: Ma = Mb = 2000 Kg M Fuel = 300 Kg Fuel Consumption = 50 Kg/s V0 Ejected Fuel = 2500 m/s V0 rocket = 0 m/sarrow_forwardThe vane is moving at 80 ft/s when a jet of water having a velocity of 150 ft/s enters at A. The cross-sectional area of the jet is 1.5 in2, and it is diverted as shown Determine the horsepower developed by the water on the blade. 1hp = 550 ft*lb/sarrow_forwardA freight train is being assembled in a switching yard. Car 1 has a mass of m1 = 64x10^3 kg and moves at a velocity of 1 m/ s. Car 2, with a mass of m2= 87x10^2 kg and a velocity of 1 m/ s, overtakes car 1 and couples to it. Neglecting friction, find the common velocity vf of the cars after they become coupled.arrow_forward
- In an air motor cylinder the compressed air has an internal energy of 450 kJ/kg at the beginning of the expansion and an internal energy of 220 kJ/kg after expansion. If the work done by the air during the expansion is 120 kJ/kg, calculate the heat flow to or from the cylinder. A. -110 kJ/kg B. +110 kJ/kg C. -350 kJ/kg D. +350 kJ/kgarrow_forwardA nozzle discharges 100 L/s with a velocity of 24 m/s and is inclined 45° downwards. The jet coming out of the nozzle strikes an unsymmetrical two-cusped vane that is moving at a velocity of 6 m/s along the horizontal plane. Half of the jet is deflected upwards 45°and the other half is deflected downwards 90°. Determine the x- and y-components of the force exerted by the jet on the vane. vanearrow_forwardThe water contained in a well must be extracted at a speed of 2.0 meters/sec through the suction pipe of a pump. Calculate the maximum theoretical height at which the bomb can be placed under the following conditions: atmospheric pressure of the place 1.0 kg. /cm² pressure supplied by the pump 0.05 kg/cm² and the pressure drop in the suction pipe is 3 times the speed of head.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