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A particle would take a time t1 to move down a straight tunnel from the surface of earth to its centre. If g is assumed to be constant, time would be t2. Find t1/t2.

A particle would take a time t1 to move down a straight tunnel from the surface of earth to its centre. If g is assumed to be constant, time would be t2. Find t1/t2.

Grade:12

1 Answers

Saurabh Kumar
askIITians Faculty 2400 Points
9 years ago
in this problem, to calculate the relation between times, use the concept given on page 8 case ii......, you will get gravity value as a function of distance from the surface.....relate it with time.
in second case, calculate time by assuming gravity
g’/g = x/(x2+R2)3/2 / R ...relate it with time.
Do try and tell me....

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