Question

Torque momentum speed displacement which is not a vector quantity

Answer 1

speed is not a vector quantity but it is a scalar quantity !

Answer 2

Question: Which of the following is not a vector quality?

1.torque 2.momentum 3.speed 4.displacement.

Answer: Speed is not a vector quality in the given quantities.

Vector quality is measured by magnitude and DIRECTION but a scalar quantity is measured ONLY by magnitude.

So,displacement, torque and momentum comes under vector quality as:

Displacement is the shortest path between the initial and final position in a PARTICULAR DIRECTION.

Torque is a FORCE which tends to cause rotation.

Momentum is the product of mass and VELOCITY.

The capitalised words in the 3 statements above show that these quantities are vector qualities.

So, speed is not a vector quality in the given options. Speed is in fact a scalar quantity.