Help with Physics question.. An object is described as having zero acceleration.?

Question

Does that mean the object has zero velocity?
What about an object with zero velocity? Does that mean it has zero acceleration?

Answer 1

If it has zero acceleration, it does NOT mean it has zero velocity. It just means that the velocity is not changing.



An object with zero velocity means that it is not moving (position is not changing). It does not necessarily have zero acceleration, but it is possible. It does have zero acceleration if velocity is constantly zero.



I hope this helps!

Answer 2

No no, zero velocity means object is static. Zero acceleration means its either static or moving in constant velocity. Zero velocity means object is not moving. Acceleration is the thing that needs to increase the velocity. If acceleration is zero the velocity will not change.

Hope you've understood

Answer 3

Zero acceleration means "no change in velocity" or constant velocity. Does not mean zero, just means not changing with time (or at this instant). It can be zero, it is just not required to be any particular value or sign.



Zero velocity means it is at rest. It might be accelerating, and is "at rest at this instant".



A boy holds his arm out at shoulder level, with a ball in his hand, palm facing down. The boy releases the ball...

- Just before release, acceleration and velocity are zero.

- At the instant of release, the ball has non-zero acceleration, but zero velocity.

- Some time later, but before the ball hits the ground, it has the same non-zero acceleration (on small scales, that is how gravity works), but non-zero velocity.

Answer 4

no accelaratin but 0 velocity not possible, velocity with 0 accleration is possible