First Equation of Motion
### Formula:
$$v = u + at$$
### Terminologies:
- v → Final velocity; velocity of an object after a given time interval.
- u → Initial velocity; velocity of an object at the beginning of motion.
- a → Acceleration; rate of change of velocity with respect to time.
- t → Time interval; duration for which the object is moving.
### Usage:
- Used to calculate final velocity when initial velocity, acceleration, and time are known.