On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short distance. One such catapult takes a 18,200-kg jet from 0 to 65 m/s in 2.9 s. (Assume the catapult acts in the positive horizontal direction. Indicate the direction with the sign of your answer where appropriate.)
(a) What is the acceleration of the jet in m/s2?
(b) What is the acceleration of the jet in g's?
(c) How far does the jet travel while it is accelerating?
(d) How large is the force that the catapult must exert on the jet?
a) 65/2.9 = 22.41 m/s^2
b) a (in g’s) = 22.41/9.8 = 2.29 g’s
b)d = 1/2 a t^2 = 0.5 x 22.41 x 2.9^2 = 94.25 m
c)F = ma = 18,200 x 22.41 = 407,862 N.
On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short...
On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short distance. One such catapult takes a 18,500-kg jet from 0 to 68 m/s in 2.9 s. (Assume the catapult acts in the positive horizontal direction. Indicate the direction with the sign of your answer where appropriate.) (a) What is the acceleration of the jet in m/s2? 23.45 m/s2 What is the acceleration of the jet in g's? g (b) How far does the jet...
A jet aircraft with a mass of 4,675 kg has an engine that exerts a force (thrust) equal to 59,500 N. (a) What is the jet's acceleration when it takes off? (Give the magnitude.) m/s2 (b)What is the jet's speed after it accelerates for 9 s? (Assume it starts from rest.) m/s (c) How far does the jet travel during the 9 s? m
The flight path of a jet aircraft as it takes off is defined by the parametric equations x= 1.2t^2 and y = 0.04t^3where t is the time after take-off, measured in seconds, and x and y are given in meters. At t = 50 s (just before it starts to level off), determine (a) the horizontal distance it is at from the airport, (b) its altitude, (c) its speed and (d) the magnitude of its acceleration.
An acceleration voltage of 30.0 kV is used to accelerate ions into the 1.54 m flight tube of a time‑of‑flight (TOF) mass spectrometer. The frequency at which spectra can be recorded is dependent on how long it takes the slowest ion to travel from the source to the detector. If you wish to scan up to ?/?m/z 6801 at what frequency (spectra/s) could spectra be recorded if a new spectrum begins each time the slowest ion reaches the detector? frequency:................spectra/s
I dont understand how we get
the position and velocity vector for b. Also, I think we need the
initial velocity to solve for part a but it is not given and it
cannot be zero since the jet is being catapulted.
32. A Lockheed Martin F-35 II Lighting jet takes off from an aircraft carrier with a runway length of 90 m and a takeoff speed 70 m/s at the end of the runway. Jets are catapulted into airspace...
2. A car accelerates along a straight road from rest to 90 km/h in 5.0s. What is the magnitude of average acceleration in meters per second squared. 3. If you are driving 110km/h along a straight road and look to the side for 2.0s, how far do you travel during this inattentive period? 4. At highway speeds, a particular car is capable of accelerating at about 1.8m/s?. At this rate, how long does it take to accelerate from 80km/h to...
1. Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue to accelerate to reach a top speed of 27.6 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +?+x direction point in the direction the cheetah runs. Express the cheetah's top speed ?top in miles per hour (mi/h)(mi/h) . vtop = Starting from a crouched position, how much time ?accel does it take a cheetah...
1. A jet plane has a takeoff speed of ? = 75 m/s and can move along the runway at an average acceleration of 1.3 m/s2. If the length of the runway is 2.5 km, will the plane be able to use this runway safely? Defend your answer. 2. A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22.0 min rest stop. If the person’s average speed is 77.8 km/h, (a) how much...
Use Matlab... Use given variables...
%Set values of parameters
H0 = 4000 ;
v0 = 0;
vplane = 38.9;
vwind = 7.0;
g = -9.81;
td = 45;
dt = 0.1;
%initial conditions
%To minimize edits, let v = vertical velocity, and vx = horizontal
velocity
y(1) = H0;
v(1) = v0;
t(1) = 0;
x(1) = 0;
vx(1) = vplane;
%loop until parachutist reaches the ground
%Calculate te horizontal distance traveled before and after the
parachute opens
d_free =...
1) A car is traveling at a steady 77km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accelerating at a steady 7.3m/s2 . a)How much time elapses before the motorcycle is moving as fast as the car? b)How far is the motorcycle from the car when it reaches this speed? 2)A gannet is a seabird that fishes by diving from a great height. If a gannet hits the water at 32m/s...