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Some do and some don't.
In the case of someone sitting on a chair, they exert a downward force on the chair due to their weight. The chair exerts an equal and opposite reaction force on them but, since this upward force acting on the person is equal to their weight, the net force is zero and the person does not accelerate.
However, consider now if the person pushed themselves up off the chair with their hands. They are now exerting an additional force on the chair with their arms along with the force due to their weight. The chair will exert a reaction force on the person that is equal and opposite to the combined downward force due to the person's weight and their arms pushing. Since it is equal to the weight plus the pushing force of the arms, it will be greater than the downward force on the person due to their weight and a net upward force will be produced, accelerating the person upwards.
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∙ 11y ago
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Do all forces always cause motion?
-- First of all, motion doesn't require any force.-- If the forces on an object are unbalanced, then the object's motion changes. Always.-- If the forces on an object are balanced, then the object's motion doesn't change.
Do all forces cause a change in motion?
yes it depends if you push or pull if you do then thats motion
What is force acting on a body with uniform motion?
A body in uniform motion has no net force acting on it. That means that either there are no forces at all, or else that all the forces acting on it add up to zero.
What is the meaning balanced forces?
It means all the forces acting apon it balance out letting an object be in motion
What is the motion of an object when the forces on an objects are balanced?
Then the effect is as if there are no forces on it at all, and it moves in a straight line with constant speed.
What are some forces that can start motion?
Forces are motion:gravitational force causes things to fall, Elastic spring force allows springs to be compressed or stretched and frictional force causes heat, but without motion, there's no heat, so basically, what I'm trying to say is, ALL the forces produce motion
Do all forces always cause motion?
-- First of all, motion doesn't require any force.-- If the forces on an object are unbalanced, then the object's motion changes. Always.-- If the forces on an object are balanced, then the object's motion doesn't change.
Forces will cause all what?
Forces are considered balanced when all of the combined forces lead to no change in the motion of the object.
Unbalanced forces acting on an object produce motion?
The second law of Newton says that the sum of all the forces acting on an object is equal to the acceleration of this object, in a given frame of reference. If the sum of forces isn't equal to zero, therefore the acceleration isn't to. So the object has a speed and is in motion, in the frame of reference chosen.
What motion does an object have if all forces are balanced?
If all forces of an object are balanced, then the motion of the object will remain the same. For instance, if all forces are balanced and if the object is moving, then it will continue to move. If it's still, it will remain still.
Can all vibratory motion produce sound?
no
Do all forces acting on objects cause motion?
If the forces acting on an object are equal there is no motion (5N->O<-5N). If the forces are unequal there is movement (7N-->O<-5N).
Do all forces cause a change in motion?
yes it depends if you push or pull if you do then thats motion
What do all laws of motion and forces have in common?
it smels like you
What are unbalanced forces and what?
Balanced forces describes when all forces on an object are equal. Unbalanced forces describes when the forces on an object are unequal, resulting in movement. Forces are balanced when the vector sum of all the forces acting on the object is zero, at which point the object will be at rest or be in motion with constant velocity. Forces are unbalanced when the vector sum of all the forces acting on the object is greater or less than zero, at which point the object will accelerate by either starting motion from rest, or changing its motion if it is already in motion, for example, by changing direction or speed.
What job uses forces and motion?
a footballer uses forces when he's kicking the ball
What is force acting on a body with uniform motion?
A body in uniform motion has no net force acting on it. That means that either there are no forces at all, or else that all the forces acting on it add up to zero.
