0
What else can I help you with?
Can constant velocity be zero?
Yes. Zero velocity is a velocity; if it is always zero then it is a constant velocity.
Is it possible for an object to have zero velocity?
Zero relative velocity to another object, sure no problem. Zero absolute velocity, not possible as there is no absolute reference to compare to.
What is the condition of the position-time graph when the velocity-time graph passes through zero?
As, in the velocity-time graph, curves passes through zero means 'when time is zero velocity is zero'. Velocity is time derivative of displacement. So displacement is maximum or minimum when time is zero in position-time graph.
What is your acceleration if you have a constant velocity?
If your velocity is constant, then your acceleration is zero.
If a small marble is dropped straight downward what is the initial velocity of the marble?
The initial velocity is zero. In most basic physics problems like this one the initial velocity will be zero as a rule of thumb: the initial velocity is always zero, unless otherwise stated, or this is what you are solving for Cases where the initial velocity is not zero examples a cannon ball is shot out of a cannon at 50 mph a ball is thrown from at a speed of 15 mph etc
If displacement is not changing as a function of time then what can we say about velocity?
If displacement is not changing as a function of time, then velocity is zero. Velocity is the rate of change of displacement with respect to time, so if there is no change in displacement, the velocity is zero.
Can constant velocity be zero?
Yes. Zero velocity is a velocity; if it is always zero then it is a constant velocity.
Can an object be moving when its acceleration is zero?
Of course, since the instantaneous velocity indicates the velocity at a certain moment in time it does not describe the change in this velocity a moment from the stated instance, which is the acceleration. Therefore, the initial velocity can be zero and still experience an acceleration since the velocity may change in the next instance. The instantaneous velocity of an object is merely the derivative of the position function, the acceleration which is the 2nd derivative of position. Therefore acceleration is first derivative of velocity, thus, the slope of the velocity function may be non zero while the function value at the given time may be zero. For instance consider a simple parabola, y = t2, as the position function, this is obvious from the non linear nature of the graph that there is an acceleration experienced. The velocity function is, by taking the derivative, v = 2t, which is a linear function, stating a constantly changing velocity. The acceleration, differential once again, is a = 2. Thus, we have found that the acceleration at every point in time the acceleration is 2. Looking at the velocity function, it is obvious that there is a zero at t = 0, while at all time the acceleration is 2. Thus, this is an example showing that a function value in a function does not describe its immediate changes from this current point to the next, thus knowing the instantaneous velocity of an object does not give any information about its acceleration unless a change in this velocity is given.
Is the net force acting on a body is zero will the velocity be zero?
Not necessarily. If the net force acting on a body is zero, the body's velocity will remain constant (assuming no other forces act on it to change its velocity), but it doesn't mean the velocity will be zero. If the initial velocity is zero, then the velocity will remain zero if the net force is zero.
Can particle have zero speed and non zero velocity?
No, a particle cannot have zero speed and non-zero velocity simultaneously. Speed is the magnitude of velocity and if speed is zero, then velocity must also be zero.
When the acceleration is zero what can you say about the velocity of an object?
When acceleration is zero, the object's velocity can still be changing if the initial velocity is not zero. However, if acceleration is zero and the initial velocity is also zero, then the object's velocity will remain constant.
What is the momentum of zero?
The momentum of an object with zero velocity is zero. Momentum is calculated as mass multiplied by velocity, so if velocity is zero, momentum will also be zero.
How is velocity of zero different from an accerlation at zero?
Velocity at zero means the object is not moving, while acceleration at zero means the object is moving at a constant velocity. Velocity at zero can be motionless or stationary, while acceleration at zero indicates that there is no change in velocity, even if the object is moving.
What is another word for zero velocity?
Zero velocity = No acceleration
At what points does velocity change direction?
The velocity of an object can only change if it is accelerating and if this is constant and continuous. Velocity will also only change direction if acceleration is greater than zero and will not work if at zero.
Can you have a zero acceleration but non zero velocity explain it with help of a graph?
Yes, it is possible to have zero acceleration with a non-zero velocity. This occurs when the velocity is constant. On a velocity-time graph, a flat, horizontal line represents constant velocity, while a zero slope (flat line) represents zero acceleration.
What is the acceleration if velocity is zero?
velocity may be zero or may not be zero i.e. if the object may continue to move with uniform velocity.
