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Answered 2010-06-11 17:27:09

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When the velocity of an object changes it is acted upon by a?

force


When the velocity of an object changes it is acted upon by an?

unbalanced force


When the velocity of a object changes it is acted upon by a?

An outside force.


What changes when unbalanced forces act on a object?

The velocity changes when an object is acted upon by unequal forces.


When does velocity change?

When the object is acted upon by an outside force.


What changes speed and direction?

Velocity is defined as a vector quantity representing both speed and direction. Acceleration is defined as the rate at which velocity changes. The acceleration of an object changes when it is acted upon by an unbalanced force.


When an object is not acted upon by a net outside force?

the object moves at a constant velocity


What changes when an unbalanced force acts upon an object?

Velocity.


What happen if an object is acted upon by balanced forces?

In this case, it is as if no force acted on the object. The object won't acceleration; if it is resting, it will continue resting, and if it is moving, it will continue moving at the same velocity.


What moment of inertia does not depend on angular velocity?

An object that is rotating at constant angular velocity will remain rotating unless it is acted upon by an external torque.


How can speed of an object change?

The speed of an object only changes if it is acted upon by another force (Newton's first law).


How does an object start moving?

an object will start to move if a force is acted upon it. an object will start to move if a force is acted upon it.


What laws of motion is this An object travels at a constant velocity unless it is acted upon by an outside force?

Newton's First Law of motion


What is the net force acting on a falling object when it reaches terminal velocity?

An object falling at terminal velocity is moving at constant speed (that's what terminal velocity means) and we will assume it is not changing direction (i.e. it is falling straight down; in reality it is more likely to be bobbing and weaving on the wind.) Constant speed and direction is another way of saying constant velocity. when an object is acted upon by a net force, it's velocity changes. So, since we know that the velocity is not changing, there is no force.


The first law of motion discusses which principle?

Newton's first law of motion states that an object not in motion will stay still unless acted upon by a force. Also, an object in motion will continue in motion at a constant velocity in a straight line unless acted upon by another force.


What causes Changes in velocity?

If an object's velocity changes -- if its speed increases or decreases or if its direction changes -- that means it has accelerated. For an object to accelerate, the sum of the forces acting upon it must be non-zero. So, in other words, forcechanges an object's velocity.


What happens to an object speed that is acted upon by unbalanced force?

Answer: Greater decrease in speed due to friction. Answer: According to Newton's Second Law, such an object will accelerate, meaning that its velocity will change.


What will an object acted upon by a net force do?

accelerate


Unless an object at rest is acted upon by a force it stays at rest due to its?

Unless an object at rest is acted upon by a force, it stays at rest due to its inertia.


The law of first mention?

If you ment to say motion it is " The velocity of a object remains constant unless the object is acted upon by an external force " As far as i am concerned there are no official laws of mention, sorry.


What of Newtons laws states that an object at rest will stay at rest and an object in motion will stay in motion at a constant velocity unless acted upon by an unbalanced force?

Newton's first law states this.


Define newtons first law of motion?

an object in motion will stay in motion unless a force is acted upon it, and an object at rest will stay in rest unless a force is acted upon it.


Is velocity the same as inertia?

Inertia is not velocity, but along the same basis. Inertia is a law of physics. That which at rest will stay at rest until acted upon by an opposite motion, that which is in motion will stay in motion until acted upon by an opposite motion.


What force makes things move or change?

Any force, as along as its unbalanced. If the object was acted upon a balanced force its velocity would stay the same whether it was moving or not.


What does Newton's First Law state?

a body at rest will stay at rest unless acted on by an unbalanced force; also a body in motion at constant velocity will stay in motion at constant velocity unless acted on by an unbalanced force


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