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A closed system in which the net external force on the system is zero is a what?
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∙ 12y ago
Isolated System
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∙ 12y ago
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Which body is in equilibrium?
When the net force acting on the body is zero. The body will remain in equilibrium until an external force is applied to the body.
A net external force acts on a particle This net force is not equal to zero is this sufficient information to conclude that the velocity of the particle changes?
Yes. F=ma if f is non zero then a is non zero and the velocity changes if the particle is not constrained, free to move.
If a car is traveling westward with a constant velocity of 20meters per seconds what is the net external force acting on it?
It's zero
What is the difference between net force and balanced forces?
net force is a kind of force and balanced forces is another kind of force. You get it or you dont get it?
When forces are what forces the motion of an object changes?
Externally applied forces which are unbalanced (do not add up to zero) = so-called net external force
What is Zero force member?
if u have 2 noncollonear members are connected to a joint that has no external loads or reactions applied ; then the force in both members = zero
Why doesn't the blood pressure within the arteries drop to zero?
The circulatory system is a closed system, it shouldn't be zero anywhere.
If the force polygon is not a closed figure what does it indicates?
That the forces sum to a non-zero resultant.
What is the defined of force?
Force is an external effort and If the resultant of all force acting on a body is zero, then the forces are known as balanced force . Balanced forces do not change the speed.
Does a system with a net force of zero have to be in equilibrium?
Yes.
Which body is in equilibrium?
When the net force acting on the body is zero. The body will remain in equilibrium until an external force is applied to the body.
What is the define of balanced force?
Force is an external effort and If the resultant of all force acting on a body is zero, then the forces are known as balanced force . Balanced forces do not change the speed.
Can phase of vibrating particle be zero?
Yeah it can be 0,when the particle comes to rest or due to the release of the external force on it.
A net external force acts on a particle This net force is not equal to zero is this sufficient information to conclude that the velocity of the particle changes?
Yes. F=ma if f is non zero then a is non zero and the velocity changes if the particle is not constrained, free to move.
When is work done though displacement is zero?
When an object is propelled by a non-centripetal force through a closed path.
Write D' Alembert's principle?
The principle of that, the resultant of a external force and kinematic reaction acting on a body equals to zero
If a car is traveling westward with a constant velocity of 20meters per seconds what is the net external force acting on it?
It's zero
