Question:
The position-time graph of a body moving uniformly in a straight line is parallel to position axis.
The position-time graph in a non-uniform motion gives constant velocity at all instants of time.
The position-time graph of a body moving uniformly in a straight line is parallel to position axis.
The position-time graph in a non-uniform motion gives constant velocity at all instants of time.
Updated On: Jul 6, 2022
- If both assertion and reason are true and reason is the correct explanation of assertion
- If both assertion and reason are true but reason is not the correct explanation of assertion
- If assertion is true but reason is false
- If both assertion and reason are false
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The Correct Option is D
Solution and Explanation
If the position-time graph of a body moving uniformly in a straight line is parallel to position axis, it means that the position of body is changing at constant time, which is absurd and shows that the velocity of the body is infinite.
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Concepts Used:
Motion in a straight line
The motion in a straight line is an object changes its position with respect to its surroundings with time, then it is called in motion. It is a change in the position of an object over time. It is nothing but linear motion.
Types of Linear Motion:
Linear motion is also known as the Rectilinear Motion which are of two types:
- Uniform linear motion with constant velocity or zero acceleration: If a body travels in a straight line by covering an equal amount of distance in an equal interval of time then it is said to have uniform motion.
- Non-Uniform linear motion with variable velocity or non-zero acceleration: Not like the uniform acceleration, the body is said to have a non-uniform motion when the velocity of a body changes by unequal amounts in equal intervals of time. The rate of change of its velocity changes at different points of time during its movement.