What is the difference between a velocity of zero and an acceleration of zero?

Answer 1

A velocity of zero means the object is not in motion.

An acceleration of zero means the object is not changing speed or direction.

An object moving at a constat velocity of 10 m/s in a straight line has zero acceleration even though it is moving at a constant speed.

Answer 2

Acceleration of Zero means the object is neither losing nor gaining speed ( velocity ). Velocity Zero means the object is not moving relative to a reference point.

Answer 3

Toss one ball straight up into the air, and hold another one out in your hand.

At the instant when the ball in the air is at the top of its path, and just beginning to start back down, both balls have a velocity of zero, but the ball in the air has acceleration (a) =g=9.81m.s^2 while the ball in your hand has a=0

Consider a parachutist. After his/her chute has been open a while, their acceleration is zero (their rate of descent is constant), but they are still 'falling', so their velocity is non-zero

Answer 4

zero velocity not moving
zero acceleration no change in the velocity
one is moving, zero acceleration, while the other is at rest

Answer 5

velocity is a vector volume meaning it somewhat is specitied via a magnitude and a direction. velocity is the magnitude of velocity. Acceleration is likewise a vector volume. If acceleration is increasing then velocity is increasing and subsequently velocity is increasing. If velocity is increasing then velocity is increasing.

Answer 6

0 velocity usually implies that the the object is at rest and isn't moving, no change in direction or magnitude. 0 accleration means that the velocity is constant, and isn't increasing at an exponential rate.