Tuesday

October 21, 2014

October 21, 2014

Posted by **Kelly** on Friday, March 11, 2011 at 5:49pm.

A fully loaded Cessna-182 airplane of mass 1290 kg has an engine failure when flying with an airspeed of 139 km/h at an altitude of 2670m on a calm day. It then glides at a constant glide angle (which is the direction of flight below the horizontal) towards a safe landing at this constant speed of 139 km/h experiencing a drag force of 1320N that opposes the direction in which the plane is moving.

Please use: g = 9.81 m s-2

(a) Find the magnitude of:

(i) The glide angle (ans 5.99 degrees)

(ii) The lift force which acts perpendicular to the wings of the plane (ans 12600 N)

(iii) The maximum distance over the ground the plane can glide while searching for a safe landing spot (ans 25500 m)

(iv) The rate with which the loaded plane is losing gravitational potential energy.(ans 51 kW)

- Physics -
**Anonymous**, Saturday, March 12, 2011 at 1:33amHmm Oasis?

You need to draw vectors first. I use inverse sin drag over mg to find the angle.

Then you use (mg)^2-(drag)2 for the normal force.

Use distance/tan angle to find distance.

Last one, you need to work out the y component of your vector, since m and g are constant, find y as PE = mgh and in this case h = y.

**Answer this Question**

**Related Questions**

Physics Oasis!! Help!! - A fully loaded Cessna-182 airplane of mass 1250 kg has ...

PreCalc - Vectors - An airplane is flying with an airspeed of 660 Kilometers per...

calc 3 - A pilot is flying a Cessna airplane at 180 mph (airspeed).He would like...

physics - A small plane mass 600 kg lifts off from the runway at a speed of 145...

ap physics - can you check my answers? 2.is more work required to bring a fully ...

Physics-check - can you check my answers? 2.is more work required to bring a ...

Maths - A truck is loaded with two different types of crates. When 20 of crate A...

physics - a fully loaded saturn V rocket has a mass of 2.9*10 to the power of 6 ...

Cartesian Vectors - An airplane is flying at an airspeed of 345 km/h on a ...

physics - An airplane of mass 1.6 x 10^4 kg is moving at 58 m/s. The pilot then ...