Wednesday

January 28, 2015

January 28, 2015

Posted by **Chris** on Wednesday, November 7, 2012 at 7:33pm.

- Math -
**bobpursley**, Wednesday, November 7, 2012 at 7:52pmThis is a neat trick, as Earth is not spherical, the difference in radius at the poles compared to the Equator is 31miles.

Ignoring that bit of fact, assuming the Earth is spherical, and there is no atmospheric drag,then

period=1day=24hrs*3600sec/hr

speed=distancearund/tperiod=2PI(3959+6)/periodabove.

- Math -
**bobpursley**, Wednesday, November 7, 2012 at 7:53pmoops, I missed the 220 degrees, so period=2PI(3965)*360/22O

- Math -
**Chris**, Wednesday, November 7, 2012 at 8:04pmHi Bob - I have 4 possible answers and cannot arrive at any of them by the above. My choices are (a)634mph (b)1038mph (c)761mph (d)113mph

**Answer this Question**

**Related Questions**

Math - Radius of earth 3,959 miles Space shuttle orbits 200 miles above earths ...

Math - Radius of earth 3,959 miles Space shuttle orbits 200 miles above earths ...

trig - In a computer simulation, a satellite orbits around Earth at a distance ...

Math - A geosynchronous equatorial orbiting satellite orbits 22,300 miles above ...

Physics - Calculate the force of gravity on a spacecraft 19200 km (3 earth radii...

Calculus - A spacecraft is in an elliptical orbit around the earth. At the time ...

Physics - When a spacecraft travels from the Earth to the Moon, both the Earth ...

Algebra URGENT! Conic sections - A spacecraft is in a circular orbit 150 ...

mit - A spacecraft of mass m is first brought into an orbit around the earth. ...

physics - on the surface of earth, a spacecraft has a mass of 2.00x10^4 ...