Acceleration

ACCELERATION is the rate at which an object changes its velocity.

It is a VECTOR quantity, which means it includes both magnitude and DIRECTION.

If the value of ACCELERATION is POSTIVE, the object is getting FASTER (accelerating).

If the value of ACCELERATION is NEGATIVE, the object is getting SLOWER (decelerating).

 

Average Acceleration

To find average acceleration, we use the equation:

 

Where:

• Δv is the change in VELOCITY in Metres per second (m/s).
• t is the TIME taken for this change in Seconds) (s).
• a is the ACCELERATION in Metres per second squared (m/s²).

 

Uniform Acceleration

For uniform acceleration, the following equation can be used:

Where:

• v is the FINAL VELOCITY.
• u is the INITIAL VELOCITY.
• a is the ACCELERATION.
• s is the DISTANCE travelled.