A navy jet with a weight of 231 kN requires an airspeed of 85 m/s for liftoff. The engine develops a maximum force of 107 kN, but that is insufficient for reaching takeoff speed in the 90 m runway available on an aircraft carrier. What minimum force (assumed constant) is needed from the catapult that is used to help launch the jet? Assume that the catapult and the jet's engine each exert a constant force over the 90 m distance useed for takeoff.
I can't figure out the equation for this problem to get me started.
There is no single formula to memorize and look up to do this problem. You have to do it one step at a time, using formulas you should know.
The plane has to develop a speed of V = 85 m/s in X = 90 meters. That requires an acceleration a given by
V = sqrt (2 a X)
Solve for a.
a = V^2/(2X)
The total force needed to accelerate the plane is given by F = ma, where m = (231/kN/9.8 m/s^2) = 23570 kg.
There is already 107 kN of force provided by the engimes. The difference between F and that number must be provided by the catapult.
Please try to fill in the missing steps. If you need additional help, show your work.
Answer this Question
An airplane is flying in still air with an airspeed of 325 miles per hour. If it is climbing at an angle of 20°, find the rate at which it is gaining altitude.
- asked by Mary
- 9,403 views
Math (just need some help)
A jet ski company charges a flat fee of $24.00 plus $2.25 per hour to rent a jet ski. Another company charges a fee of $23.00 plus $2.50 per hour to rent the same jet ski. Using a graphing calculator, find the number of hours for which the costs are the
- asked by Olivia N J
- 8,833 views
AP physics 1
an astronaut on a space walk discovers that this jet pack has no longer works, leaving him stranded 50m from the space-craft. If the jet pack is removable, explain how the astronaut can still use it to return to the ship?
- asked by lakpa
- 2,233 views
A jet flying at 135 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 1.82*10^5 kg. Calculate the magnitude of the necessary lifting force.
- asked by JULIA
- 3,969 views
Why did Adams increase the size of the American navy? A)He wanted to prepare for all-out war on Britain. B He hoped it would deter more attacks by French ships.*** C)He needed to use tax money to fund an increase in military spending. D)Congress passed a
- asked by Ally
- 2,841 views
A cake of soap placed in a bathtub of water sinks. The buoyant force on the soap is: a- Zero b- Less than its weight c- Equal to its weight d- More than its weight I believe is D for if the cake of soap sinks, it means that the specific gravity is more
- asked by DMITRIC
- 4,914 views
A pilot, whose mass is 91.0 kg, makes a loop-the-loop in a fast jet. Assume that the jet maintains a constant speed of 125 m/s and that the radius of the loop-the-loop is 0.478 km. What is the apparent weight that the pilot feels (i.e., the force with
- asked by Dan
- 2,383 views
10. A military jet flies horizontally with a velocity of 450 m/s and 20,000 m above the ground. When the jet is straight above an artillery gun a shell is fired. Assuming the shell hits the jet. a. Calculate the horizontal component of the initial velocity
- asked by Sue
- 1,042 views
A small jet can fly 1008 miles in 4 hours with a tailwind but only 832 miles in 4 hours into a headwind. Find the speed of the jet in still air.
- asked by Anonymous
- 5,948 views
An airplane whose airspeed is 295 km/h flies parallel to the direction of a wind with a speed of 40.0 km/h. What are the two possible speeds of the plane relative to the ground?
- asked by Anonymous
- 1,556 views
You are riding on a Jet Ski at an angle of 35¢ª upstream on a river flowing with a speed of 2.8 m/s. If your velocity relative to the ground is 9.5 m/s at an angle of 20.0¢ª upstream, what is the speed of the Jet Ski relative to the water? (Note:
- asked by Clarita
- 3,627 views
A 747 jet, travelling at a speed of 70 m/s, touches down on a runway. The jet slows to rest at the rate of 2.0 m/s^2. Calculate the total distance the jet travels on the runway as it is brought to rest.
- asked by elana
- 2,385 views
Flying against the wind, a jet travels 2340 miles in 3 hours. Flying with the wind, the same jet travels 8960 miles in 7 hours. What is the rate of the jet in still air and what is the rate of the wind?
- asked by Kayla
- 1,361 views
Question: Two masses 2.2 Kg and 3.2 Kg connected by a rope over a massless and frictionless pulley hang at 1.8 m above the ground on either side of the pulley. The pulley is 4.8 m above the ground. What is the maximum height that the 2.2 Kg weight will
- asked by Ian
- 600 views
Algebra 2 A
A jet ski company charges a flat fee of $26.00 plus $3.25 per hour to rent a jet ski. Another company charges a fee of $24.00 plus $3.50 per hour to rent the same jet ski. Using a graphing calculator, find the number of hours for which the costs are the
- asked by Daniel
- 8,977 views
a jet pilot takes his aircraft in a vertical loop. a) if the jet is moving at a speed of 2000 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0g's
- asked by jeffery
- 16,141 views
To measure the speed of the jet stream, a weather plane left its base at noon and flew 800 km directly against the stream with an air speed of 750 km/h. it then returned directly to its base, arriving at 2:24 P.M. What was the speed of jet stream?
- asked by Ryan
- 1,325 views
which of the following were advantages of the British in the revolutionary war? select all that apply. 1)knowledge of local geography 2)large quantities of supplies 3)a large navy 4)efficient communication
- asked by kadence
- 1,474 views
What were some of the advantages the Continental Army had over the British? Select all that apply. -fighting on familiar territory - a large navy -more troops - better supplies
- asked by HEEEELP
- 1,013 views
A Navy jet (see the figure) with a weight of 219 kN requires an airspeed of 87 m/s for liftoff. The engine develops a maximum force of 100 kN, but that is insufficient for reaching takeoff speed in the 85 m runway available on an aircraft carrier. What
- asked by John
- 2,400 views