Saturday

January 31, 2015

January 31, 2015

Posted by **joseph** on Thursday, April 21, 2011 at 5:16am.

- physics -
**Damon**, Thursday, April 21, 2011 at 7:29amWhat is centripetal acceleration as a function of latitude?

w = 2 pi/24 hours = 2 pi /(24*3600) rad/s

Ac = w^2 r

r = Re cos (Lat)

where Re is earth radius and Lat is latitude angle

calculate Ac

call tension in plumb bob line T

then T will be off the direction to center of earth by angle A

T vector - mg vector = m Ac vector

draw those with mg toward earth center and Ac horizontal toward earth N-S axis

Then |T| cos A = m |Ac| cos Latitude +mg

and |T| sin A = m |Ac| sin Latitude

approximate |T| by m g

then sin A = (Ac/g) sin Latitude approximately

**Answer this Question**

**Related Questions**

physics - A plumb bob does not hang exactly along a line directed to the center ...

Physics - Because of the Earth's rotation, a plumb bob does not hang exactly ...

Physics: fictitious forces - A plumb bob does not hang exactly along a line ...

Physics - A plumb bob does not hang exactly along a line directed to the center ...

Physics - A plumb bob (a mass m hanging on a string) is deflected from the ...

Physics - Mountain pull. A large mountain can slightly affect the direction of “...

Physics - A 2.1 kg pendulum bob hangs from a 2 meter string. It is pulled to the...

physics - A 2.1 kg pendulum bob hangs from a 2 meter string. It is pulled to the...

HIT - Dr. Bob's computerized records have been compromised by a hacker, ...

Physics - You want to make an old-fashioned pendulum clock, with a period of ...