A-train-1-moves-from-east-to-west-clockwise-and-another-train-2-moves-from-west-to-east-anticlockwise-on-the-equator-with-equal-speeds-relative-to-ground-The-ratio-of-their-centripetal-accelerati

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Question Number 16506 by Tinkutara last updated on 23/Jun/17

$$\mathrm{A}\mathrm{train}1\mathrm{moves}\mathrm{from}\mathrm{east}\mathrm{to}\mathrm{west}$$$$\left(\mathrm{clockwise}\right)\mathrm{and}\mathrm{another}\mathrm{train}2\mathrm{moves}$$$$\mathrm{from}\mathrm{west}\mathrm{to}\mathrm{east}\left(\mathrm{anticlockwise}\right)\mathrm{on}$$$$\mathrm{the}\mathrm{equator}\mathrm{with}\mathrm{equal}\mathrm{speeds}\mathrm{relative}$$$$\mathrm{to}\mathrm{ground}.\mathrm{The}\mathrm{ratio}\mathrm{of}\mathrm{their}$$$$\mathrm{centripetal}\mathrm{acceleration}\frac{a_1}{a_2}\mathrm{relative}\mathrm{to}$$$$\mathrm{centre}\mathrm{of}\mathrm{earth}\mathrm{is}$$$$\left(1\right)>1$$$$\left(2\right)<1$$

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