the speed would have to change.
In a theoretical scenario with constant velocity, the true acceleration would typically be zero.
If space were entirely empty this would be true, but even minute gravitational forces can change the trajectory and velocity of a projectile.
If the velocity is constant (i.e., there is no acceleration). Terminal velocity is an example, although any constant velocity would fit this description.
It's not. If you speed is constant (but not zero), then your velocity won't be zero, either.You may be confusing this with the following: If your VELOCITY (not your speed) is constant, then your ACCELERATION is zero. Acceleration refers to how quickly velocity changes, so if velocity doesn't change at all, acceleration is zero.
Only if the velocity is constant.
The slope of a time-distance chart would be a constant. The slope of a time-velocity chart would be 0.
To make acceleration equal zero. The velocity must be constant. For example, if velocity is constant at 10 m/s^2 its acceleration is zero. The same is true if velocity is 0 m/s^2.
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
The acceleration would be zero because the turtle is moving at a constant speed
Yes. Zero velocity is a velocity; if it is always zero then it is a constant velocity.
The velocity does not change direction or magnitude. The object 1) may not be moving, or it 2) may be moving at a constant velocity. In the case of the latter, that means it's moving in the same direction and at a constant speed.
In that case, the velocity is said to be constant.