Question

what kind of acceleration occurs when an object speeds up?
positive
negative
neutral
zero

Explanation:

In physics, acceleration is the rate of change of velocity. When an object speeds up, its velocity is increasing. If we consider the direction of velocity as positive (by convention, often the direction of motion), an increase in speed means the acceleration has the same sign as the velocity, so it's positive. Negative acceleration is when an object slows down (deceleration), neutral isn't a term for acceleration in this context, and zero acceleration means constant velocity (no speeding up or slowing down).

Answer:

A. positive