Which of the following physical quatities is different from others?

Options

A. Displacement
B. Velocity
C. Force
D. Kinetic energy

Explanation

To determine which physical quantity is different from the others among displacement, velocity, force, and kinetic energy, we will analyze each quantity based on their characteristics.

### Step-by-Step Solution:

1. **Identify the Physical Quantities**:
- The given quantities are:
- Displacement
- Velocity
- Force
- Kinetic Energy

2. **Classify Each Quantity**:
- **Displacement**:
- Definition: The shortest distance from the initial to the final position.
- Type: Vector quantity (has both magnitude and direction).

- **Velocity**:
- Definition: The rate of change of displacement.
- Type: Vector quantity (has both magnitude and direction).

- **Force**:
- Definition: The product of mass and acceleration (F = ma).
- Type: Vector quantity (has both magnitude and direction).

- **Kinetic Energy**:
- Definition: The energy possessed by an object due to its motion, calculated as \( KE = \frac{1}{2} mv^2 \).
- Type: Scalar quantity (has only magnitude, no direction).

3. **Compare the Quantities**:
- Displacement, velocity, and force are all vector quantities, meaning they have both magnitude and direction.
- Kinetic energy, on the other hand, is a scalar quantity, meaning it only has magnitude and no direction.

4. **Conclusion**:
- Since kinetic energy is the only scalar quantity among the options provided, it is different from the others.

### Final Answer:
The physical quantity that is different from the others is **kinetic energy (D)**.

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