Question

velocity is a vector quantity.give reason​

Answer 1

Answer:

Velocity needs a direction to make sense. If it doesn't, it's just speed. Since we define displacement as a vector quantity, velocity is a vector quantity because it is the change in displacement with respect to time; the derivative of a vector is still a vector.

Answer 2

Firstly, Vector quantity has both magnitude and direction.

Velocity is a vector because it is defined as a speed in a given direction.