Which of these is not a vector quantity? Group of answer choicestimedisplacementvelocityacceleration

1. Break Down the Problem

To determine which of the given options is not a vector quantity, we need to identify the characteristics of vector and scalar quantities.

2. Relevant Concepts

• Vector Quantity: A physical quantity that has both magnitude and direction (e.g., displacement, velocity, acceleration).
• Scalar Quantity: A physical quantity that has only magnitude (e.g., time, mass, temperature).

3. Analysis and Detail

Let's analyze each option:

1. Time: It measures duration and does not have a direction. Therefore, it is a scalar quantity.
2. Displacement: It indicates how far out of place an object is; it requires both distance and direction. Hence, it is a vector quantity.
3. Velocity: It describes the speed of an object in a given direction, making it a vector quantity.
4. Acceleration: This measures the rate of change of velocity and has both magnitude and direction, classifying it as a vector quantity.

4. Verify and Summarize

The only option that lacks a directional component is time, which confirms that it is the only scalar quantity in the list. The remaining options—displacement, velocity, and acceleration—are all vector quantities.

Final Answer

The option that is not a vector quantity is time.