Question

the average acceleration of an object involves the change in velocity time; while the instantaneous acceleration is time. the change in velocity derivative of the velocity with respect to divided by a span of moving to another question will save this response.

Explanation:

Average acceleration is defined as the change in velocity divided by a span of time. Instantaneous acceleration is the derivative of the velocity with respect to time.

Answer:

The first blank: divided by a span of; The second blank: derivative of the velocity with respect to