Motion In A Plane

Position of an ant (\(\mathrm{S}\) in metres) moving in \(\mathrm{Y}\)-\(\mathrm{Z}\) plane is given by \(S=2 t^2 \hat{j}+5 \hat{k}\) (where \(t\) is in second). The magnitude and direction of velocity of the ant at \(\mathrm{t}=1 \mathrm{~s}\) will be :