If a hole is drilled along the diameter of the earth and a stone is dropped into it. The stone :

If a hole is drilled along the diameter of the earth and a stone is dr

1.	If a hole is drilled along the diameter of the earth and a stone is dropped into it. The stone :
Answer» reaches the centre of earth and stops reaches the opposite end and stops EXECUTES S.H.M. about the centre of earth reaches the opposite side and escapes earth. Solution :A stone dropped in tunnel along the diameter of earth executes S.H.M. motion as ACCELERATION is proportional to displacement from mean position is DIRECTED towards centre of earth. At depth `d,g.=g(1-(d)/( R ))=g((R-d)/( R ))=g(y)/( R )` Hence correct choice is ( c ).

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If a hole is drilled along the diameter of the earth and a stone is dropped into it. The stone :

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