Airplane Definition and 354 Threads

Homework Statement Assuming equal rates of acceleration in both cases how much further would you travel if braking from 56mi/h to rest than from 28mi/h ? a, 5.2 times farther b, 4.8 times farther c, 3.2 times farther d, 4.0 times farther Homework Equations not really sure what i...

An airplane with a speed of 97.5 m/s is climbing upward at an angle of 50.0° with respect to the horizontal. When the plane's altitude is 732 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly beneath the point of release, to where...

Homework Statement An airplane is heading due south at a speed of 500 km/h. If a wind begins blowing from the southwest at a speed of 100 km/h, calculate the velocity of the plane relative to the ground, and how far off course it will be after 10 min. if the pilot takes no corrective action...

I've been working on this and I can't figure out why, exactly, it's not working properly. I can reserve a seat 4A but when I try to reserve seat 6A, the output includes a line of string that says "The seat you requested is unavailable. Please make another selection." yet it still let's me make...

Homework Statement Consider a wheel of a landing airplane. The wheel has mass M, radius R, and moment of inertia around its axis \alphaMR^2. The wheel lands on the ground with horizontal velocity v, but does not rotate before it touches the ground. (a) Calculate the velocity of the wheel when...

Homework Statement You are traveling on an airplane. The velocity of the plane with respect to the air is 160 m/s due east. The velocity of the air with respect to the ground is 32 m/s at an angle of 30° west of due north.Homework Equations 1)What is the speed of the plane with respect to the...

Homework Statement The nose of an ultralight plane is pointed south, and its airspeed indicator shows 45 m/s . The plane is in a 20 m/s wind blowing toward the southwest relative to the earth. Find the x-component of the velocity with respect to the earth. Find the y-component of the...

A friend of mine imported some foods packaged in aluminum cans (vacuum packing). The goods were delivered by a cago plane, after arrival a part of the cans were found dented. It really confused me. Could that be caused by the airplane flight?

Homework Statement An airplane has an airspeed of 145 km/h. it is to make a flight in a direction of 72 degees while there is a 32-km/h wind from 342 degrees. what will the airplane's actual heading be? Homework Equations trig functions The Attempt at a Solution this is a calc3...

My dad asked me this yesterday, if a fly(insect) flies from one end to the airplane to another, would it be flying faster than the airplane? The obvious answer is no, it's physically impossible, but how do I articulate the reasoning, I know it has something to do with the reference frame of...

hi guys, I was wondering what is the equation of cross section between fuselage and wing of the below airplanes:antonov 140 , B-707 , cessna-210 , cessna citation. Can anyone help?a book or a refrence or whatever you have

hi, there are 8 versions of c-130 .what is the platform that is common in them? Can anyone help?

hi guys, I was wondering what is the equation of cross section between fuselage and wing of the below airplanes:antonov 140 , B-707 , cessna-210 , cessna citation. Can anyone help?a book or a refrence or whatever you have

1. I got the correct answer but I am confused about the reasoning and want to understand the concept.. "Rank from most to least, the amount of lift on the following airplane wings: a. Area 1000 m^2 with atmospheric pressure difference of 2.0 N/m^2, b. Area 800 m^2 with atmospheric pressure...

Homework Statement An airplane is flying in a horizontal circle at a speed of 410 km/h (Fig. 6-41). If its wings are tilted at angle a = 42° to the horizontal, what is the radius of the circle in which the plane is flying? Assume that the required force is provided entirely by an...

Homework Statement An airplane travels 1250 km/h around the Earth in a circle of radius essentially equal to that of the Earth, returning to the same place. Using special relativity, estimate the difference in time to make the trip as seen by Earth and airplane observers Homework...

hi how do i calc the weight of a plane if it stays in level flight with the air speed on top of the wing 62m/s and the bottom 54m/s. the surface area of the wing is 16m^2

Relative Motion-- Airplane vs radar station and tracking the displacement In Figure 4-49, a radar station detects an airplane approaching directly from the east. At first observation, the airplane is at distance d1 = 340 m from the station and at angle θ1 = 34° above the horizon. The airplane...

Homework Statement You are on an airplane traveling due east at 110 m/s with respect to the air. The air is moving with a speed 43 m/s with respect to the ground at an angle of 30° west of due north. 1)What is the speed of the plane with respect to the ground? >>> I answered this question and...

I was recently riding on an airplane and became intrigued by how I could not feel when the airplane was turning. I then tried to figure out the physics behind this sensation but to no avail. Could anyone provide an explanation from a physics standpoint as to why I am unable to feel when the...

Homework Statement A woman flying an airplane executes a loop in the air. Determine the value of the centripetal force acting on the woman flying the airplane when at the top of the loop? R = 380m V = 65 m/s M = 55kg Homework Equations Fc = mv^2/r The Attempt at a Solution I...

Homework Statement An airplane propeller is rotating at 1900 rev/min. Compute the propellers angular velocity. Homework Equations The Attempt at a Solution I know 1rev/min= 2pi/60 rad/s so i multiplies 2pi by 1900 and got my answer to be 3800pi/60 rad/s but idk if that's correct? someone please...

Homework Statement VELOCITY AND ACCELERATION: An airplane lands in a carrier deck at 150 miles per hour and is brought to a stop by an arresting device in 500 feet. Homework Equations What is the acceleration? What is the time required to stop? The Attempt at a Solution

Homework Statement An airplane has a speed v and a flying range (out and back) of R in calm weather. (a) Prove that in a north wind of speed n (n < v) its range is R(phi) = R(v^2 - n^2) / [v(srqt(v^2 - n^2 sin^2(phi))] in the direction whose true bearing from north is phi (Assume...

Homework Statement A plane has a max airspeed of 770m/s. If the wind velocity is 150m/s 48o W of S, in what direction and with what velocity should the pilot fly the plane to have a ground velocity of 640m/s at 57o E of S? Can She do it? Homework Equations V(plane to wind) + V(wind to...

Homework Statement An airplane whose rest length is 46m is moving at uniform velocity with respect to Earth, at a speed of 575 m/s (a) By what fraction of its rest length is it shortened to an observer on Earth? (b) How long would it take, according to Earth clocks, for the airplane's clock...

A 3000 kg Cessna airplane flying north at an altitude of 1600 m over the jungles of Brazil at 75 m/s collided with a 7000 kg cargo plane flying 35 degrees north of west with a speed of 100 m/s. As measured by a point on the ground directly below the collision, the Cessna wreckage was found 1000...

Homework Statement The jet engine of an airplane takes in 130 kg of air per second, which is burned with 4.3 kg of fuel per second. The burned gases leave the plane at a speed of 600 m/s (relative to the plane). If the plane is traveling 260 m/s, determine the power (hp) delivered...

Homework Statement A model airplane of mass 0.710 kg flies in a horizontal circle at the end of a 63.0 m control wire, with a speed of 35.0 m/s. Compute the tension in the wire if it makes a constant angle of 20.0° with the horizontal. The forces exerted on the airplane are the pull of the...

1. You're in an airplane that flies horizontally with speed 1000 km/h (280 m/s) when an engine falls off. Neglecting air resistance, assume it takes 30 s for the engine to hit the ground. a. Show that the airplane is 4.0 km high. b. Show that the horizontal distance that the aircraft...

Homework Statement If a plane is flying level at 950 km/h and the banking angle is not to exceed 40 degrees what is the minimum curvature radius for the turn?Homework Equations possibly F = ma = mv2 / r ? The Attempt at a Solution no idea where to start on this one, not sure where the angle...

What is marginal stable airplane?

Homework Statement An airplane is flying at an airspeed of 620 km/hr in a cross wind that is blowing from the northeast at a speed of 50km/hr. In what direction should the plane head to end up going due east? Homework Equations v+w=(xi+yj), trig identities The Attempt at a Solution...

Hello all. I have a question about a wing model... The model I have is an airplane wing (airfoil) in a wind tunnel. The wing is supported at the quarter-chord length and the wing body is free to move. My model is in the time domain with an oscillatory force at 20 Hz applied to the wing...

Im not sure what this is: http://www.dumpert.nl/mediabase/1092641/c3edd207/curious_stroboscopic_effect.html Maybe this is an explanation for some sightings seen by airplane passengers. Or maybe it is an artifact of a bad videocamera and you wouldn't see it with the naked eye.

Homework Statement An airplane in a wide "outside" loop can create an apparent zero eight inside the aircraft cabin. What must be the radius of curvature of the flight path for an aircraft moving at 749 km/h to create a condition of weightlessness inside the aircraft? Assume the acceleration...

Hi guys, In light of my upcoming flight to a tropical island, I would like to ask about a scenario that I've wondered about for ages. >>>NOTE: It's really ridiculous<<<< Okay, let's say the plane falls apart at an altitude of 30,000 feet and you are in free fall... Let's say that you were...

why jet engines are attached to the wings of the airplane ,not other part?:confused:

So there are two vector problems that seem to be classic: someone trying to swim across a river that is flowing and an airplane flying with a given wind. For example, one might say a swimmer is swimming at 1m/s across a river with a .5m/s flow of water. Of course, you do the exercise to find you...

I am in the airport right now and I was wondering if there is someway to determine the speed of the aircraft engine from the sound the engine makes inside the plane. I have a audio analysis program and I can determine the frequency of the sound inside the airplane. Is there any way to...

Homework Statement A small airplane flies at a velocity of 145 km/h toward the south as observed by a person on the gound. The airplane plot measures an air velocity of 172 km/h south. What is the velocity of the wind that affects the plane? Beyond knowing the velocity of both the plane and...

Homework Statement An airplane leaves the airport when there is an Easterly wind (i.e a wind blowing from direction East) of speed 43 km/h. If the plane starts out directly above Taupo with an airspeed v=140 km/h, pointing in a direction θ = 26° East of North, how far is it from Taupo after...

Homework Statement An airplane is heading southwest at 600 mph and encounters a wind blowing from the west. a)calculate the planes destination of the wind is blowing 30 mph. b)calculate the planes destination if the wind is blowing 90 mph. 2. The attempt at a solution a)...

Homework Statement ****If anyone could help me, it would be much appreciated. I have attempted several times, but my answers aren't correct. I want to see what everyone else got. If possible, a diagram would be great. Thank you very much everyone. a pilot wants to fly her plane to a lake...

Here's the problem: An airplane is flying on a bearing of 340 degrees at 325 mph. A wind is blowing with the bearing of 320 degrees at 40 mph. a) Find the component form of the velocity of the airplane. b) Find the actual ground speed and direction of plane. I can find the component form...

Homework Statement The passenger section of an airplane can be thought to have a shape of a cylindrical tube. For a small airplane, the tube is 35 m long and has an inner radius of 2.5 m. The exterior of the tubular wall is lined up with a 6- cm thick layer of insulating material of thermal...

Homework Statement An airplane flying horizontally at an altitude of 3 miles and at a speed of 480 miles per hour passes directly above an observer on the ground. How fast is the distance from the observer to the airplane increasing 30 seconds later? Homework Equations The...

Homework Statement An Airbus A320 jetliner has a takeoff mass of 75,000 kg. It reaches its takeoff speed of 82 m/s in 35s. Homework Equations F=ma V/t=a The Attempt at a Solution I am completely lost on this question. I have seen numerous examples on the internet, with the exact...

Homework Statement A small plane departs from point A heading for an airport 490 km due north at point B. The airspeed of the plane is 210 km/h and there is a steady wind of 50 km/h blowing directly toward the southeast. (a) Determine the proper heading for the plane. ° west of north...

This question was posed on another forum. I figure the best place to get the true answer would be on a forum dedicated to physics. If there was an airplane with wheels and the wheels are resting on a giant conveyor belt, will the plane achieve flight? The conveyor belt will match the speed of...