Science, asked by bhavika1741, 1 year ago

the angular speed omega withwhich the earth would have to rotate on its axis so that a person on the equator would weight 3/5th of original weight

Answers

Answered by repihul
1

True weight at equator is w=mg and observed weight is W' = mg' = 3/5 mg

taking λ= 0.

   mg'      = mg - mRw^2 cosλ

   3/5mg = mg - mRw^2 cos0

               = mg - mRw^2

or

 mRw^2 = 2/5 mg

 

w = (2g/5R)^1/2

   = 7.8 * 10^-4 rad/sec 



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