The equation for plumb line deviation currently presented in textbooks ignores the effect of earth's flattening on the direction of true gravitational acceleration and is incorrect by nearly a factor of 2. The correct equation is consistent with the shape and dimensions of the earth with a very high degree of accuracy. The simple treatment of the problem uses Newton's second law in an inertial reference system and is suitable for introductory physics courses.
|Original language||English (US)|
|Number of pages||4|
|Journal||American Journal of Physics|
|State||Published - Nov 2000|
ASJC Scopus subject areas
- Physics and Astronomy(all)