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[Post New]25 Mar 2008 17:48:10 IST
    Subject: Assume that a tunnel is dug across the earth passing through it's centre.
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sanjana_suri (0)

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Olaaa!! Perrrfect answer. 0  [0 rates]
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find the time taken by a particle projected into the tunnel with speed gR, to cover the length of the tunnel. 
    
 

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