Question

Choose the correct statement.

• A. An object's motion can be defined without considering observer.
• B. In one dimensional motion particle is constrained to move in a straight line and can't change its direction of motion.
• C. The position of a point $x$ is the expression of its accurate location from a pre-chosen reference point called origin.
• D. In one dimensional motion particle is constrained to move in a plane.

Answer 1

The correct option is C

The position of a point $x$ is the expression of its accurate location from a pre-chosen reference point called origin.

Motion is a combined property of the object and the observer.

In one dimensional motion, particle is constrained to move in a straight line and can only change its direction of motion opposite to its original direction of motion.

The position of a point $x$ is the expression of its accurate location from a pre-chosen reference point called origin.