Question

A particle moves with a uniform velocity

• A. The particle must be at rest.
• B. The particle moves along a curved path.
• C. The particle moves along a circle.
• D. The particle moves along a straight line.

Answer 1

The correct option is D

The particle moves along a straight line.

The explanation of the correct option:

(D): The particle moves along a straight line.

1. When a particle moves with a uniform velocity, the velocity is constant.
2. In the distance-time graph, as the velocity is constant, distance is increasing with time with a constant slope, which is a straight line, and also for the velocity-time graph, velocity is constant and is having a line parallel to the time axis which is a straight line.

The explanation of the incorrect option:

(A) The particle must be at rest.

When the particle is having a uniform velocity, then it is moving with a constant velocity which means the particle must be moving.

(B) The particle moves along a curved path.

The particle is moving with a constant velocity, so, the particle must follow the path of a straight line,

(C) The particle moves along a circle.

As the particle has a constant velocity, so the particle moves along a straight line, not along a circle.

Therefore, a particle moves with a uniform velocity then the particle moves along a straight line.
Hence, Option (D) is the correct answer.