Question

Is it possible to have an object with a constant acceleration but with zero velocity

Answer 1

Heya

Yes. It is possible.

A body with a velocity 0 can still accelerate.

The simplest example is a body which is thrown up. At the peak point its velocity becomes 0 but still accelerates due to gravity.

It's acceleration will be 9.8m/s² even when its velocity is 0

Hope it helps!!