A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n $-$ 1 to t = n. The the ratio ${{{S_n}} \over {{S_{n + 1}}}}$ is :

Question

A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let S_n be the distance travelled by the block in the interval t = n $-$ 1 to t = n. The the ratio ${{{S_n}} \over {{S_{n + 1}}}}$ is :

${{2n} \over {2n - 1}}$

${{2n - 1} \over {2n}}$

${{2n - 1} \over {2n + 1}}$

${{2n + 1} \over {2n - 1}}$

Solution

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