Sunday

December 21, 2014

December 21, 2014

Posted by **COFFEE** on Saturday, February 10, 2007 at 10:15pm.

(drag on jet / drag on transport.

Please help :)

* Physics/Math - bobpursley, Saturday, February 10, 2007 at 7:13pm

You must have been given some equations for drag force, these equations vary, but typically they depend on Area, a coefficeint, and velocity^2.

Post your equations and work, and I will critique.

* Physics/Math - COFFEE, Saturday, February 10, 2007 at 9:54pm

Sorry, the equation given is:

D=1/2(Dp)(Area)(Velocity^2)

I do not understand what area I am trying to calculate and what the constant equals. How do I find Dp and Area???

You dont need area. Dp is density.

You are calcualting the ratio of drag for th jet as compared to the prop plane.

Forcejet/forceprop=densityjetair*vj^2 /densityprop*vp^2

Notice all the units divide out. The donstant is notshowing, but it divides out anyway.

**Answer this Question**

**Related Questions**

physics - Calculate the ratio of the drag force on a passenger jet flying with a...

Physics/Math - Calculate the ratio of the drag force on a passenger jet flying ...

Physics - Calculate the ratio of the drag force on a jet flying at 1049 km/h at ...

Physics - A sky diver of mass 80.0 ks jumps from a slow-moving aircraft and ...

physics - A skydiver of mass 81.5 kg jumps from a slow-moving aircraft and ...

Physics - Calculate the force required to pull a copper ball of radius 2.00 cm ...

Physics - Calculate the force required to pull a copper ball of radius 2.00 cm ...

physics - The terminal velocity of a 4×10−5 {\rm kg} raindrop is about 9...

Physics please help - Calculate the force required to pull a copper ball of ...

Physics - The modern Boeing 747 passenger jet airplane cruises at a speed up to ...