It doesn't. If acceleration is zero, that just means that velocity isn't
changing ... the motion is in a straight line at a constant speed.
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When acceleration is 0, it means there is no change in velocity. At a maximum point, the velocity is either increasing or decreasing, but when it reaches that point, the acceleration is 0.
The acceleration at instantaneous maximum velocity is zero, as the velocity is not changing at that moment.
The maximum velocity and acceleration of a point on a string depend on the properties of the string and the forces acting on it. The velocity of a point on the string can be limited by factors such as tension and length of the string. The acceleration of a point on the string can be limited by factors such as the mass of the string and the forces acting on it. The maximum velocity and acceleration can vary depending on the specific situation and conditions.
"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.
No, if velocity is zero and acceleration is less than zero, it means that the object is slowing down. Speed is the magnitude of velocity, so if acceleration is negative, the speed decreases.
Since the derivative of velocity is acceleration, the answer would be technically 'no'. Here is why: v = 0 v' = 0 = a Or in variable form... v(x) = x v(0) = 0 v'(0) = 0 = a You can "trick" the derivative into saying that v'(x) = 1 = a (since the derivative of x = 1) and then stating v'(0) = 1 = a... but that is not entirely correct. Acceleration is a change over time and is measured at more then one point (i.e. the acceleration of this body of matter is y from time 1 to 5) unless using derivatives to form the equation of the acceleration line/curve. If an object has a constant acceleration of 1, then the velocity is constantly increasing over that time. Using the equation discussed above and looking at acceleration over time, at 0 seconds, acceleration is 0 and so is velocity, but from 0-1 seconds acceleration is 1 and velocity is 1 as well. 0-2 seconds, acceleration is 1, but velocity would be 2 (at the end of 2 seconds).