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If an object falls with constant acceleration the velocity of the object must?
Wiki User
∙ 12y ago
Changing at a constant rate equal to acceleration.
Wiki User
∙ 12y ago
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Is it true that the thing that affects how fast it falls is the objects surface area?
Surface area is ONE thing that can affect how fast an object falls. Two forces determine how fast an object falls - the force of gravity and the opposing drag on the object from the medium it is falling through. In the case of an object falling in a vacuum, there is no drag so the object falls strictly according to the law of gravity. If an object is dropped through a fluid such as air or water, it can reach a terminal velocity where the force of gravity is exactly counterbalanced by the opposing drag on the object. In this case acceleration ceases - although motion does not. In other words, the object continues to fall, but it doesn't speed up. Drag force is a function of object velocity, viscosity of the fluid it is falling through, the surface area of the falling object, the surface roughness of the falling object, and the geometry of the falling object (spheres usually have less drag than cubes for example).
When an object falls through the air and encounters air resistance its overall speed will be?
Terminal Velocity. This is the velocity at which the accelaration from Earth's gravity and the drag from air resistance reaches equillibrium.
If an object is released from rest and falls for 5 seconds How far did the object fall?
For this we calculation must consider the equations=uv + 1/2 at2Where s = displacement, u= initial velocity, v= velocity, a= acceleration & t=time.Since initial velocity is is at rest hence 0 we can ignore the uv.Also the acceleration is gravity or g.So therefores=1/2 gt2For earth g= 9.812865328 m/sand t= 5 ssos= 1/2*9.812865328*(5)2s= 122.66mThis answer of course does not take into consideration wind resistance.
How long does it take an object to fall when dropped?
The traditional acceleration due to gravity (9.8meters per second per second) is assuming a vacuum. However, for shortfalls, it works out well.For longer falls, the force of gravity is eventually equaled by the force ofair resistance. At this time the speed remains constant. As you are likelyaware, in order to have a change in velocity, an unbalanced force isrequired.The "terminal velocity" is determined by the shape of the object. Skydivers can speed up and slow down by changing the shape they present to therelative wind (the air going by them). Ultimately, they open theirparachute and greatly increase the for of the air resistance... (luckily!)slowing them down considerably.
A ball rolls off a table and falls 80 m to the floor landing with a speed of 4.5 ms What is the magnitude of the acceleration of the ball just before it strikes the ground?
It's 9.81m/s since vertical acceleration is always constant.
What is acceleration of a rain drop that falls at a constant velocity?
If the velocity is constant then there is no acceleration. The acceleration is zero.
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.
Will the velocity of an object increase decrease or remain constant as it reaches the ground?
The velocity of an object will increase as it falls towards the ground due to the acceleration of gravity. However, once it reaches terminal velocity, its velocity will remain constant.
Does the velocity of a falling object increase or decrease?
The velocity of a falling object increases as it falls due to the acceleration of gravity acting on it. As the object falls, it gains speed and accelerates toward the ground until it reaches a constant velocity known as terminal velocity.
An object is falling at its what if it falls at a constant velocity?
If an object is falling at a constant velocity, then the net force acting on it is zero. This means that the force of gravity pulling the object downward is balanced by an equal and opposite force. The object will continue to fall at a steady speed without accelerating.
What happens to the acceleration and velocity when an object in free fall moves downward?
In free fall, the acceleration of the object remains constant at 9.8 m/s^2 directed downward towards the center of the Earth. The object's velocity will increase as it falls due to the constant acceleration, until it reaches terminal velocity if air resistance is present.
What increases As an object falls freely in a vacuum?
As an object falls freely in a vacuum, its speed increases due to gravity causing acceleration. The acceleration experienced is constant, leading to a linear increase in velocity over time.
As an object falls freely in a vacuum its?
velocity increases as it falls due to the force of gravity acting on it. Since there is no air resistance in a vacuum, the object will continue to accelerate until it reaches its terminal velocity or hits the ground.
What happens to the displacement velocity and acceleration of an object as it falls through the air to the ground?
As an object falls through the air towards the ground, its displacement increases as it moves further down. The velocity of the object also increases due to acceleration from gravity until it reaches its terminal velocity, when air resistance balances out with gravity. The acceleration of the object remains constant at approximately 9.8 m/s^2 due to gravity acting on it.
When a falling object stops speeding up and falls at a constant rate of speed that object has reached its?
When a falling object stops speeding up and falls at a constant rate of speed, it has reached its terminal velocity. Terminal velocity occurs when the force of air resistance equals the force of gravity acting on the object, resulting in a balanced and constant downward acceleration.
What happens to the acceleration of an object as it falls through air?
Initially, the acceleration of an object as it falls through air is constant and equal to the gravitational acceleration (9.8 m/s^2). However, as the object accelerates, air resistance increases, which eventually causes the acceleration to decrease until it reaches a terminal velocity where the acceleration becomes zero.
Explaine what happens to the velocity and the acceleration of an object in fall?
As an object falls freely under the force of gravity, its velocity increases at a constant rate due to acceleration. The acceleration of the falling object is constant and equal to the acceleration due to gravity, approximately 9.8 m/s^2. This means that each second, the velocity of the object increases by 9.8 m/s.
