A particle moves in a straight line such that its displacement is `s^(2)=t^(2)+1` Find.
(i) velocity

Explanation

`s^(2)=t^(2)+1`
`therefore" "(ds)/(dt)=t//s (1)`
`"i.e., "v=t//s =((1)/(s))(sqrt(s^(2)-1))`