Question

When the velocity of an object does not change, what happens to its acceleration?

Answer 1

Answer:

Acceleration is the rate of change of velocity.

When the velocity of an object does not change, i.e., when the velocity is constant, the acceleration is zero.

Mathematically (differential form),

$Velocity = k, \: where \: k \: is \: a \: constant \\ \frac{d(Velocity)}{dt} = 0 \\\boxed{ Acceleration = 0}✓$

Zero is the right answer.