Which of the following is a null vector (a) velocity of a body moving in a circle with a uniform speed (b) velocity vector of a body moving in a straight line with a uniform speed ( c) position vector of the origin of the rectangular coordinate system (d) displacement vector of a stationary object

Which of the following is a null vector (a) velocity of a body moving

1.	Which of the following is a null vector (a) velocity of a body moving in a circle with a uniform speed (b) velocity vector of a body moving in a straight line with a uniform speed ( c) position vector of the origin of the rectangular coordinate system (d) displacement vector of a stationary object
Answer» both a & B both b & C a, b & c both c & d Answer :D