Definition:

Acceleration is the change in velocity per unit time.

What is acceleration? Acceleration is the rate at which an object’s speed or direction changes over time.

• If something speeds up, slows down, or changes direction, it is accelerating.

• It tells us how quickly velocity is changing.

• The unit of acceleration is meters per second squared (m/s²).

Example:

If a car speeds up from 0 to 60 km/h in 5 seconds, it is accelerating.

Where it’s used in

Acceleration is used in:

• Vehicles: Cars, bikes, and planes use acceleration to increase or decrease speed.

• Sports: Runners, cyclists, and athletes accelerate to gain speed quickly.

• Amusement park rides: Roller coasters use acceleration to create thrilling motion.

• Spacecraft: Rockets accelerate to escape Earth’s gravity.

Formula of acceleration:

Final speed-starting speed

Acceleration= ——————————————

Time taken

It means:

• See how much the speed has changed.

• Divide that by how long it took.

• That’s your acceleration!

v-u

a = ———

t

Where:

• a = acceleration

• v = final velocity (ending speed)

• u = initial velocity (starting speed)

• t = time taken for the change

Favourite part/ note/ summary- acceleration is the change in speed. In short accelerations formula is (Acceleration is equal to the change in speed divided by the time it takes for that change.) Acceleration is found in most of the things which moves, starting from vehicles, sport, amusement park, space craft and even when we start to stun from walking.