অভিকর্ষজ ত্বরণ g এর পরিবর্তন
Let '' and '' be the acceleration due to gravity at height '' above the earth's surface and at depth '' below the earth's surface respectively. IF then the relation between '' and '' is
Let the radius of the earth be R
and acceleration due to gravity at earth surface be g.
Acceleration due to gravity at height h
above the earth surface, g”=g(1−2h/R)
A
cceleration due to gravity at depth d
below the earth surface, g’=g(1−d/R)
Now for g”=g’
we get, g(1−2h/R)=g(1−d/R)
⇒ 1−2h/R=1−d/R
⇒d=2h
The altitude at which the weight of a body is only of its weight on the surface of the earth is (Radius of the earth )
At what height over the earth's pole does the freefall acceleration decreases by 1% ?
পৃথিবীর ব্যাসার্ধ 6400 km, পৃথিবীর নিজ অক্ষের সাপেক্ষে আবর্তনকাল 24 ঘণ্টা। ভূপৃষ্ঠে অভিকর্ষীয় ত্বরণ-9.8ms
At which height above the surface of the earth of radius , will the acceleration due to gravity decrease by ?