Question

An object is moving with variable speed, then

• A. Its velocity may be zero
• B. Its velocity may be variable
• C. Its velocity may be constant
• D. none of the above

Answer 1

The correct option is B

Its velocity may be variable

1. Speed is defined as the rate of change in distance covered by an object.
2. The velocity of an object is defined as the rate of change of its displacement.
3. Velocity is also nothing but the combination of the direction and the magnitude of the speed of the object at an instant.
4. If the speed of an object changes constantly, then its velocity also changes accordingly.
5. Hence, an object moving with a variable speed would also have a variable velocity.

The correct answer is (B) its velocity may be variable