Retardation

Retardation

### Formula:

$$a = -\frac{\Delta v}{\Delta t}$$

### Terminologies:

- a → Retardation or negative acceleration.

- Δv → Change in velocity.

- Δt → Time interval.

- Negative acceleration → Acceleration opposite to the direction of velocity.

### Usage:

- Used when an object slows down due to acceleration opposite to motion.