What would be used to calculate an objects acceleration

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt),represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.

not sure if this what   you'r looking for would be percent composition