An ant is at a corner of a cubical room of side

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

a

. The ant moves with constant speed

u

. The minimum time taken to reach the farthest corner of the cube is (1)

\frac{3a}{u}

(2)

\frac{\sqrt{3}a}{u}

(3)

\frac{\sqrt{5}a}{u}

(4)

\frac{(\sqrt{2}+1)a}{u}