Which of the following does not change when a car keeps a constant speed but change In direction.

A. Speed

B. Velocity

C. acceleration

D. distance

The answer is A. Speed

Explanation:

There are two types of physical quantities which are scalar and vector quantities. Scalar quantities are those which do not need any direction for their explanation and vector quantities require a direction along with unit and magnitude. In the given options Speed is scalar quantity which is independent of direction but velocity and acceleration are vector quantities therefore speed is the correct answer.