Question

what is max acceleration​

Answer 1

at t = 0 seconds to a maximum of. at t = 4 seconds, and that the acceleration is zero at t = 2 when the yo-yo reaches its minimum velocity (and maximum speed). When the acceleration is negative — on the interval [0, 2) — that means that the velocity is decreasing.

Answer 2

heya mate..

Acceleration is the derivative of velocity. If a function gives the position of something as a function of time, you differentiate the position function to get the velocity function, and you differentiate the velocity function to get the acceleration function. Stated a different but equivalent way, the first derivative of position is velocity, and the second derivative of position is acceleration.