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Can velocity of an object be zero at the same instant its acceleration is not zero?
Yes. For example a swinging pendulum has zero velocity at the turning point but acceleration is not zero.
An object thrown upward has zero acceleration at the highest point?
No, the acceleration at the highest point is never 0.
What happens to acceleration of pendulum at its lowest point of its swing?
The acceleration of a pendulum is zero at the lowest point of its swing.
What hasa zero velocity yet a non-zero acceleration?
For example, an object thrown upwards, when it is at its highest point. This situation is only possible for an instant - if the acceleration is non-zero, the velocity changes, and can therefore not remain at zero.
Can a body have acceleration with zero velocity?
Yes, but only for an instant. For example, if you throw a stone up, when it is at its highest point it has a velocity of zero, but its acceleration is -9.8 m/s2. If there is acceleration, the velocity can not remain at zero.
Is it possible for a body to have zero velocity and non-zero acceleration?
Answer:Yes, but only instantaneously.Consider a thrown ball moving directly upward. At the highest point of its trajectory, the instanataneous velocity (the velocity at that precise instant) is zero even while the acceleration due to gravity remains non zero.
Why acceleration is maximum at extreme points of simple pendulum?
Acceleration is maximum at the extreme points of a simple pendulum because that is where the velocity is zero and the direction of acceleration changes from negative to positive (or vice versa). This change in acceleration direction leads to a maximum magnitude of acceleration at the extreme points.
Can an object have a speed of zero and the acceleration not be zero?
Yes, but only at one instant. For instance, if you throw an object straight up, when it reaches the highest point its instantaneous speed is zero, but of course its speed is changing - thus, acceleration is non-zero.
When a ball is thrown up what is its acceleration and velocity at the highest point?
At the highest point, the velocity of the ball is zero because it momentarily stops before falling back down. The acceleration of the ball at the highest point is equal to acceleration due to gravity, which is directed downward toward the center of the Earth and is approximately 9.81 m/s^2.
What is the acceleration of a projectile when instantaneous vertical velocity is zero at the top of its projectile?
Acceleration at the point of zero vertical velocity will be equivalent to gravitational acceleration on that body. On Earth, for example, this is around 9.8 meters per second per second (9.8m/s2).
What happens to the acceleration of a simple pendulum as it approaches the lowest point of its swing?
The velocity reaches a maximum, and the pendulum will begin to decelerate. Because the acceleration is the derivative of the velocity, and the derivative at the location of an extrema is zero, the acceleration goes to zero.
The acceleration of a body cannot be zero at a point where?
When a body is rotating in a circular path around an axis.
