Position of an ant (S in metres) moving in Y - Z plane is given by S=2 t² j+5 k (where t is in second). The magnitude and direction of velocity of the ant at t=1 ~s will be:

Kinematics: JEE Main 2024 Physics question

JEE Main 2024 · 27 Jan, Morning shift · Q7823

JEE Main 202427 Jan, Morning shiftPhysicsMediumKinematics177× since 2002

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 :