Question

Examples of vector quantities are

• A. Velocity, length and mass.
• B. Speed, length and mass.
• C. Time, displacement and mass.
• D. Velocity, displacement and acceleration.

Answer 1

The correct option is D

Velocity, displacement and acceleration.

Explanation of correct option:

D: Velocity, displacement and acceleration.

1. Vector quantities are the physical quantities that are defined in terms of both magnitude and direction.

For example: Displacement, Velocity, and Acceleration are vector quantities.

2. Scalar quantities are the physical quantities that are defined in terms of only magnitude.

For example: Velocity, length and volume, density, speed, energy, mass, and time are scalar quantities.

Explanation of incorrect option:

A: Velocity, length and mass.

1. Velocity is vector quantity but length and mass are scalar quantities because that is defined in terms of only magnitude, not direction.

B: Speed, length and mass.

1. Speed, length and mass are scalar quantities because that is defined in terms of only magnitude, not direction.

C: Time, displacement and mass.

1. Displacement is vector quantity but length and mass are scalar quantities because they have been defined in terms of only magnitude, not direction.

Thus, Velocity, displacement and acceleration is a vector quantity.