When a 5000 lb car driven at 60 mph on a level road is suddenly put intoneutral gear (i.e. allowed to coast), the velocity decreases in the followingmanner:60V =mph ,1+()where t is the time in sec. Find the horsepower required to drive this carat 30 mph on the same road.Useful constants: 9 = 22 mph/sec, 1 H.P. = 550 ft.lb/sec, 60 mph =88 ft/sec.

To find: The horsepower required to drive the car at 30 mph. Given: The weight of car W=5000 lb. The…

When a 5000 lb car driven at 60 mph on a level road is suddenly put into neutral gear (i.e. allowed to coast), the velocity decreases in the following manner: 60 mph , 1+() where t is the time in sec. Find the horsepower required to drive this car at 30 mph on the same road. Useful constants: 9 = 22 mph/sec, 1 H.P. = 550 ft.lb/sec, 60 mph 88 ft/sec. %3D

When a 5000 lb car driven at 60 mph on a level road is suddenly put into neutral gear (i.e. allowed to coast), the velocity decreases in the following manner: 60 mph , 1+() where t is the time in sec. Find the horsepower required to drive this car at 30 mph on the same road. Useful constants: 9 = 22 mph/sec, 1 H.P. = 550 ft.lb/sec, 60 mph 88 ft/sec. %3D

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.12P: A differential equation encountered in the vibration of beams is d4ydx4=2D where x = distance...

See similar textbooks

Similar questions

Convert 22C to Fahrenheit.
1. average velocity is correct (-0.75 m/s) but instantaneous velocity (-1 m/s) is incorrect can you help me?
This most likely is made to be a probelm about mx''+bx'+kx=f(t) m = mass b = friction k = spring constant 4. A mass weighing four pounds stretches a spring 24 in. Suppose the mass is atequilibrium and is set into motion with a velocity of 6 inches per second. The mass is in a mediumwhere friction is small, and we assume it is zero. Note that the acceleration due to gravity near theearth’s surface where the experiment takes place can be taken as 32 ft/s2.(a) Suppose that in addition to the conditions described above, a hammer strikes the mass everyπ/2 seconds starting at t = 0. A delta function with impulse of 1 pound-second models theforce of each blow to the mass. Find the function x(t) for the displacement from equilibrium infeet of the mass at time t in seconds. Express x(t) as a piecewise defined function without the use ofunit step or Heaviside functions and such that in each time window it is a different multiple of the samesinusoidal function.(b) Now assume the same spring-mass…
1. A 451 mm x 491 mm air compressor has a piston displacement of 0.9 m^3/s. Determine the operating speed of the compressor (rpm) Answer in whole number 2. The initial condition of air in an air compressor is 99 kPa and 30 deg. C and discharges at 438 kPa. The bore and stroke are 374 mm and 395 mm, respectively. The percent clearance of 11 % running at 356 rpm. Find the volume of air at suction in m^3/s Answer in one decimal places 3. A single stage air compressor hadles 0.454 m^3/sec of atmospheric pressure, 27 deg. C air, and delivers it to a receiver at 652.75kPa. Compression is isothermal. Determine the work in kW 4. An air compressor is to compress 8.878 m^3/min from 98.881 kPa to 988.493 kPa. Assuming condition is ideal, and n=1.3 What will be the work in kW due to 2 staging Answer in whole number
A circular saw blade 0.6 m in diameter starts from rest and accelerates with constant acceleration to an angular velocity of 100 rad.s-1 in 20 s. Find the angle in degrees through which the blade has turned in the 20-s interval
On Mars, the acceleration due to gravity is 6.64 m/s2. What would a rock’s speed be 6 s after you dropped it on Mars?
F = (128)(s+1)N (to right) and Va = 1.8 m/s (to right) Every block is 25 kg. can you write a and b part's solutions seperatly ?
The acceleration due to gravity at sea level is g = 32.2 ft/s2 and is decreased 0.003 ft/s2 per 1000 ft of elevation. Find the weight (in lbf) of a 165 lbm man atop the 8849 meters Mt. Everest relative to this point?Full solution.
A flywheel rotating at 500 rpm decelerates uniformly at a 3 rad/sec². How many seconds will it take for the flywheel to stop?
Graph below represents the force on a 12 kg air mass as it passes through a jet engine. Immediately after entering the engine, the force is 9,039 N, and the force tapers linearly to zero once the air reaches the back of the engine 2.3 m later. If the air enters the engine with velocity 252 m/s, what is its exit velocity? (Please answer to the fourth decimal place - i.e 14.3225)
Consider a device similar to that used by Joule to measure the net workbetween two states as depicted in the follow diagram. The mass of the weightconnected by a string to the winding drum is 4 kg. If upon release, the mass falls 0.8meters, by how many joule does the internal energy of the water change? Is the rise inthe internal energy of the water due to work or heat being added to the system?
1. A 10 kg, 0.5 m radius wheel rotates with an angular acceleration of 10 rad/s/s. What is the torque ( KNm ) developed at the rim of the wheel? 2. A 10 kg, 0.5 m radius wheel running at 1800 rpm develops a torque of 50 KNm. Find the power ( KW ) transmitted by the wheel. 3. The total acceleration develop at the rim of the wheel 100 m/s/s. What is the wheel centripetal acceleration ( m/s/s ) if the tangential acceleration is 80 m/s/s ? 4. A particle moves in such a way that a = 2 s + 1 m/s/s , where t is in seconds. If the particle has moved 9 m , what is the velocity ( m/s ) at that point ?