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The terminal velocity of an object moving through a fluid under the force of gravity (let's assume the fluid is air for sake of discussion) occurs at the speed where the drag force of the air on the object becomes equal to the weight of the object. At this point the object has stopped accelerating and is in uniform motion (constant speed).
For example, a skydiver jumping out of a plane will accelerate towards the Earth. At first the skydiver is accelerating at 9.8 m/s2, the gravitational acceleration of the Earth. But as he accelerates to higher speed, drag force becomes greater and the rate of acceleration slows. Drag force is proportional to the square of the speed, by the way. Eventually the skydiver will reach a speed (around 120 mph depending on the orientation of the skydiver's body) where the drag force is equal to his weight. That will be his terminal velocity.
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What is the acceleration of an object that reache terminal velocity?
When an object reaches terminal velocity, its acceleration becomes zero. Terminal velocity occurs when the drag force acting on the object equals the force of gravity pulling it downwards, resulting in no net force and thus no acceleration.
Does a skydivers decreases her acceleration when falling 5 seconds before reaching her terminal velocity?
No, a skydiver's acceleration remains constant as they fall towards their terminal velocity. This is because terminal velocity is the point at which the forces of gravity and air resistance are balanced, resulting in a constant velocity.
What happens to an object acceleration as it goes from free fall to terminal velocity?
As an object falls freely, its acceleration remains constant at approximately 9.8 m/s^2 until it reaches terminal velocity. Once it reaches terminal velocity, the acceleration becomes zero as the forces acting on the object balance out, resulting in a constant velocity.
How can acceleration affect velocity?
Acceleration is the rate at which velocity changes. If an object experiences acceleration in the same direction as its velocity, its speed will increase. If acceleration is in the opposite direction of velocity, the object will slow down. Changes in acceleration can also affect the direction of velocity, causing the object to change direction.
A skydiver steps from a helicopter and falls for 5 seconds before reaching her terminal velocity During this 5 second interval her acceleration will?
increase- your speed will increase until terminal velocity is reached. From there it will stay constant.
What is the acceleration of an object that reache terminal velocity?
When an object reaches terminal velocity, its acceleration becomes zero. Terminal velocity occurs when the drag force acting on the object equals the force of gravity pulling it downwards, resulting in no net force and thus no acceleration.
What is the acceleration of an object at terminal velocity?
zero
How does air ir resistance affect the accerleration of a falling object?
It slows the acceleration - possibly down to zero @ "terminal velocity".
Does a skydivers decreases her acceleration when falling 5 seconds before reaching her terminal velocity?
No, a skydiver's acceleration remains constant as they fall towards their terminal velocity. This is because terminal velocity is the point at which the forces of gravity and air resistance are balanced, resulting in a constant velocity.
What happens to an object acceleration as it goes from free fall to terminal velocity?
As an object falls freely, its acceleration remains constant at approximately 9.8 m/s^2 until it reaches terminal velocity. Once it reaches terminal velocity, the acceleration becomes zero as the forces acting on the object balance out, resulting in a constant velocity.
Are the direction of the velocity and acceleration of a falling body the same?
For the most part, yes; once at terminal velocity, there is no acceleration, so it has direction.
How can acceleration affect velocity?
Acceleration is the rate at which velocity changes. If an object experiences acceleration in the same direction as its velocity, its speed will increase. If acceleration is in the opposite direction of velocity, the object will slow down. Changes in acceleration can also affect the direction of velocity, causing the object to change direction.
What is the acceleration of falling object that has reached its terminal velocity?
Zero, by definition.
A skydiver steps from a helicopter and falls for 5 seconds before reaching her terminal velocity During this 5 second interval her acceleration will?
increase- your speed will increase until terminal velocity is reached. From there it will stay constant.
What is the terminal velocity of a falling object on earth?
An object that has reached its terminal velocity is going at a constant velocity. Acceleration is the rate of change of the velocity. The rate of change is zero. Therefore, the acceleration is zero.
How would changing velocity affect acceleraition?
Changing velocity affects acceleration because acceleration is defined as the rate of change of velocity. If an object's velocity increases, its acceleration is positive. If the velocity decreases, the acceleration is negative. The magnitude of the acceleration depends on how quickly the velocity changes.
What affect momentum?
force and acceleration
