Which of the following physical quantities represents the rate of change of velocity?

Correct option is C

Correct Answer: (c) Acceleration

Explanation:
Acceleration is the physical quantity that represents the rate of change of velocity with respect to time. It is a vector quantity, meaning it has both magnitude and direction. Mathematically, acceleration is expressed as:

​$$a=\frac{\Delta v}{\Delta t}$$​​

where Δv is the change in velocity and Δt is the change in time.

Other Options:

• Speed: Speed refers to the rate of change of distance with time and does not involve velocity or direction.
• Velocity: Velocity represents the rate of change of displacement with time but not its rate of change.
• Distance: Distance is a scalar quantity representing the total path traveled, not related to the rate of change of velocity.