Question

which quantity changes to define the velocity with time​

Answer 1

Answer:

the smallest unit into which a substance can be divided without changing its chemical nature

Answer 2

Answer:

Acceleration is the change in velocity over the time taken to make the change. This will, then, be influenced by the angle between the final and initial velocities. Kinetic theory: when we consider the average velocity of particles in a gas, we find that it, too, is zero.