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For an object's speed to change (increase or decrease), the object must be accelerating. If there is an acceleration, there is a non-zero net force acting on the object.
note: Velocity and speed are different. An object's velocity can change without the speed changing. Example of this is centripetal acceleration. The object's velocity changes directions, thus the velocity changes. The magnitude (or speed), however, stays the same (if only a radial acceleration is present).
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∙ 14y ago
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As a freely falling object speeds up what is happening to its acceleration due to gravity?
Its acceleration due to gravity is constant. The acceleration is equal to the object's change in speed every second. I've tried to illustrate the constantly-increasing falling speed in my diagram below.
What is negative acceleration?
Negative Acceleration:Negative Acceleration refers to an object whose speed decreases as it moves away from its original starting position.Actually, that's not entirely correct. Acceleration is a vector quantity and, therefore, depends on direction. If an object is moving in a straight line, in the negative direction, its acceleration is positive if its speed decreases with time and negative if its speed increases with time.Think of it this way: if the acceleration vector is pointed in the same direction as the way an object is moving, the object speeds up. If the acceleration vector is pointed opposite the direction of motion, it slows down.
When the balanced forces act on an object the object speeds up starts to move slows down stops or changes direction is this acceleration?
Any time speed or direction changes, that's acceleration. There's no way a balanced group of forces could do any of this, though. The vector sum of a group of balanced forces is zero, and where net force is zero, there's no acceleration.
What happens when a moving object speeds up slows down or changes directions is it acelleration?
what happens when a moving object speeds up,slows down,or changes direction?
What is the acceleration when an object accelerated from 25m's to 45m's?
depends on how long it takes to accelerate from these speeds (45m/s-25m/s)/time(s)
What is true when the velocity and the acceleration of an object are in the same direction?
In that case, the object speeds up.
What occurs every time an object speeds up or slows down?
Acceleration
When an object no longer speeds up?
It now lacks acceleration and is either maintaining constant speed or is decelerating.
Do acceleration only speeds up an object?
No. At least the way the word "acceleration" is used in physics, it refers to any change in velocity, divided by the time it takes for the change.
What is a scientific term for 'speeds up '?
The scientific term for 'speeds up' is acceleration
As a freely falling object speeds up what is happening to its acceleration due to gravity?
Its acceleration due to gravity is constant. The acceleration is equal to the object's change in speed every second. I've tried to illustrate the constantly-increasing falling speed in my diagram below.
What is negative acceleration?
Negative Acceleration:Negative Acceleration refers to an object whose speed decreases as it moves away from its original starting position.Actually, that's not entirely correct. Acceleration is a vector quantity and, therefore, depends on direction. If an object is moving in a straight line, in the negative direction, its acceleration is positive if its speed decreases with time and negative if its speed increases with time.Think of it this way: if the acceleration vector is pointed in the same direction as the way an object is moving, the object speeds up. If the acceleration vector is pointed opposite the direction of motion, it slows down.
What is the rate of change of velocity which occurs if an object speeds up changes direction or slows down?
Any change in velocity, whether to speed up, slow down, or just change direction, results from acceleration. Acceleration is an expression of the rate of change of velocity.
When the balanced forces act on an object the object speeds up starts to move slows down stops or changes direction is this acceleration?
Any time speed or direction changes, that's acceleration. There's no way a balanced group of forces could do any of this, though. The vector sum of a group of balanced forces is zero, and where net force is zero, there's no acceleration.
What occurs any time and objects speeds up slows down or changes direction?
When an object speeds up, slows down, or changes direction, it is changing it's velocity, also known as accelerating.This is a common term in mechanical physics. The formula for velocity is D(distance) / T(time) whereas acceleration is the change in velocity which takes time to do making its fomula: D/T^2
What happens to an object longer it falls?
It speeds up
When does an object have no acceleration?
When it is stationary, or when the velocity is constant. If it is speeding up or slowing down, it has acceleration.
