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When the acceleration is zero what can you say about the velocity of an object?
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If we are told that an object has a constant velocity what can we say about the force on that object?
If an object is moving with constant velocity, then the net force acting on it is zero. This means that the forces acting on the object are balanced, resulting in no acceleration and a constant velocity.
Can object have zero acceleration and nonzero velocity at the same time and give examples?
If an object has zero acceleration, its velocity doesn't have to be zero. Acceleration is a measure of the change in velocity over time. Zero acceleration means there is no change in velocity over time, namely constant velocity. Constant velocity can be any velocity (including zero velocity or "at rest"), so the object's velocity doesn't have to be zero to have zero acceleration.
Can an object have constant velocity and non-zero acceleration?
No, an object cannot have constant velocity and non-zero acceleration simultaneously. If an object has non-zero acceleration, it means its velocity is changing over time. Constant velocity implies a steady speed in a straight line with no change in direction or magnitude.
If the instantaneous velocity of an object is constant then so is acceleration.?
the velocity increases at a constant rate
An object has initial velocity in the upward direction a final velocity in the downward direction and undergoes constant acceleration What can you say about its average acceleration?
The average acceleration of the object will be negative since it changes direction from upward to downward velocity. The acceleration will be constant because the object undergoes constant acceleration throughout the motion.
Can a body have acceleration without velocity?
Yes, a body can have acceleration without velocity. This can occur if the body is changing its direction or speed while its velocity is zero at a particular moment. For example, a car at rest that suddenly accelerates forward experiences acceleration without velocity initially.
Can object have zero acceleration and nonzero velocity at the same time and give examples?
If an object has zero acceleration, its velocity doesn't have to be zero. Acceleration is a measure of the change in velocity over time. Zero acceleration means there is no change in velocity over time, namely constant velocity. Constant velocity can be any velocity (including zero velocity or "at rest"), so the object's velocity doesn't have to be zero to have zero acceleration.
Can an object have constant velocity and non-zero acceleration?
No, an object cannot have constant velocity and non-zero acceleration simultaneously. If an object has non-zero acceleration, it means its velocity is changing over time. Constant velocity implies a steady speed in a straight line with no change in direction or magnitude.
If the instantaneous velocity of an object is constant then so is acceleration.?
the velocity increases at a constant rate
What happens if an object covers equal distances in equal periods of time?
Then you can say that the object's speed and the magnitude of its velocity are constant, and the magnitude of its acceleration is zero.
An object has initial velocity in the upward direction a final velocity in the downward direction and undergoes constant acceleration What can you say about its average acceleration?
The average acceleration of the object will be negative since it changes direction from upward to downward velocity. The acceleration will be constant because the object undergoes constant acceleration throughout the motion.
What can we say about the forces on an object that is not moving?
If an object is not moving, the forces acting on it must be balanced. This means that the net force on the object is zero, resulting in no acceleration and maintaining a constant velocity or state of rest.
What is the velocity of an object if the net force on the object is zero?
You can't tell. The only thing you can say is that as long as the net force onan object is zero, the velocity is constant. We don't know what that velocityis, but it doesn't matter. Whatever it is, it remains constant. Contrary to oureveryday experience on Earth, no force is required to keep something moving.By the way, that also means that the object's acceleration is zero when thenet force on it is zero.
If we are told that an object has a constant velocity what can we say about the force on that object?
If an object is moving with constant velocity, then the net force acting on it is zero. This means that the forces acting on the object are balanced, resulting in no acceleration and a constant velocity.
Can an unbalanced force change its velocity?
Yes, an unbalanced force can change the velocity of an object. When there is a net force acting on an object (resulting from unbalanced forces), it will accelerate or decelerate, causing its velocity to change in the direction of the net force.
Is it true to say that a projectile has zero acceleration at its peak. If yes explain if not give a reason?
Yes, at the peak of its trajectory, a projectile has zero vertical acceleration. This is because at the peak, the projectile's vertical velocity is transitioning from upward to downward motion, causing a momentary halt in vertical acceleration as it changes direction.
Can the velocity of an object be zero at the same instant its acceleration is not zero?
Consider the gravitational pull of the earth and acceleration due to gravity. When you throw a ball in the air, at the highest point, it is stopped and has a velocity of 0. However, if the acceleration of the ball was also 0, then the ball would not be able to come back down to the earth. In order for the ball to come back down, there must be an acceleration. This acceleration is the acceleration due to gravity which is constant at the surface of the earth at 9.8 m/s^2. Another example: Say a car is rolling down a hill backwards. In order to stop the car from rolling more, the driver accelerates. After a certain amount of time, the car will stop (with velocity of 0) and then it will start moving up the hill again. When it is stopped, the car is still accelerating in order to overcome the force of gravity pulling the car down the hill.Technically, an object is accelerating if it's changing it's velocity. This includes speeding up, slowing down, and turning. So, yeah, if an object isn't moving at all, but is turning, it's still accelerrating.
