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If a particle moving in a straight line and its distance x cms from a fixed point O on the line is given by `x=sqrt(1+t^(2))` cms, then acceleration of the particle at t sec. is

A

`(1)/(x^(2))" cm/sec"^(2)`

B

`(-1)/(x^(2))" cm/sec"^(2)`

C

`(1)/(x^(3))" cm/sec"^(2)`

D

`(-1)/(x^(3))" cm/sec"^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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