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When a ball is tossed straight up it momentarily comes to a stop at the top of its path Is it in equilibrium during this brief moment?
Wiki User
∙ 14y ago
No, the ball does not stop. Relative to the ground that is.
I am replacing the last answer which read "yes it will stop".
The author of this answer was thinking digitally. Anotherwords, real life events can be measured as a bunch of steps showing changing velocity.
In reality, natural movement in the world around us is continually variable (analogue).
The ball travelled upward, then changed direction and fell to the ground. If we are to say that it stopped we would have to elaborate by saying it was at rest for no longer than zero seconds.
Anotherwords, the change in direction from up to down was flawless. Up, then down, there was never a period of inbetween.
Even if a computer thinks there was. A digital computer cannot record even one second of true analogue data, so how can it know!
Hope this helps.
Its a hard concept to get your head around because it deals with the concept of infinity.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoAt the point it leaves your hand, after that the effects of gravity and air resistance start to take effect and it is slowing down until it comes to a stop at its highest point then gravity pulls it back down again.
Wiki User
∙ 12y agoAs far as I understand it, "equilibrium" means . . .
1). All of the forces on an object add up to zero.
2). The object behaves as if there were no force on it at all.
3). Its velocity (speed and direction) is not changing.
4). Its acceleration is zero.
A ball at the top of its arc fails on each of these points.
1). The only force on it is the gravitational one ... its weight. There are no others,
so the forces don't add up to zero.
2). The object behaves as if there is a downward force on it ... its upward speed
constantly decreases.
3). Its velocity (speed and direction) is changing. Its speed is changing from small to zero
and then again to small, and its direction is changing from upward to downward.
4). Its acceleration is 9.8 meters per second2 downward ... the acceleration of gravity ...
just as it has been since it left your hand, and as it will continue to be until it hits the
ground.
No way could this be mistaken for an equilibrium condition.
Wiki User
∙ 9y agoI assume you mean, whether the FORCES acting on the ball are in equilibrium. No. If they were in equilibrium, the ball would stay up. The reason the ball accelerates (changes its speed) is that the forces are not in equilibrium.
Wiki User
∙ 15y agoNo, it gains potential energy then, and loses kinetic energy as it slows down
Wiki User
∙ 14y agoNo, even in that moment it is NOT in equilibrium because even thought there is no velocity, there is still a net force. Gravity is still at work.
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Is momentarily an adverb?
Yes.momentarily |ˌmōmənˈte(ə)rəlē|adverb1 for a very short time : as he passed Jenny's door, he paused momentarily.2 at any moment; very soon : my husband will be here to pick me up momentarily.
Does the location of a moment matter in static equilibrium?
No, it does not depend on location if it is a pure moment.
Define equilibrium and write the two conditions of equilibrium?
Equilibrium means that an object will stay at rest or not accelerate; the conditions are the net force is zero and the net moment about any point is zero.
A body is in equilibrium when it's?
when it is at rest, or in constant uniform motion with net force and moment of zero (no acceleration)
What does it mean for a body to be in equilibrium and what are the conditions for a body to be in equilibrium?
A body to be in equilibrium means that the net forces ( resultant force ) acting on the body is "Zero".This can occur in two cases :-When bodies at rest, e.g. , a parked car, a box at rest ... ( usually the downward weight balances the upward reactions ).When a body is moving with uniform speed in a straight line , e.g. , a car or a plane moving with uniform speed in a straight line ... ( usually the driving force of engine balances the force of friction or drag force ).If a body is in equilibrium under the action of several parallel forces, it must satisfy two conditions :-The sum of the forces in one direction MUST equal the sum of the forces in the opposite direction.The principle of moments must apply . It states that : "The sum of anticlockwise moments about any point is equal to the sum of the clockwise moments about that point" .( If there is no equilibrium , i.e. there is a resultant moment/force different from "Zero"; the resultant moment/force produces rotation/acceleration of the system or body. )
What does momentarily mean?
In a moment.
Is momentarily an adverb?
Yes.momentarily |ˌmōmənˈte(ə)rəlē|adverb1 for a very short time : as he passed Jenny's door, he paused momentarily.2 at any moment; very soon : my husband will be here to pick me up momentarily.
Does the location of a moment matter in static equilibrium?
No, it does not depend on location if it is a pure moment.
A ball thrown straight up has zero velocity at its highest point Is the ball in equilibrium at this point?
Yes, a ball is in equilibrium at the top of it's throw because there is a moment of no change, or equilibrium, when it is suspended in air.
Define equilibrium and write the two conditions of equilibrium?
Equilibrium means that an object will stay at rest or not accelerate; the conditions are the net force is zero and the net moment about any point is zero.
Which orientation of an electric dipole in an uniform electric field would correspond to unstable equilibrium?
So interesting query! As we keep the dipole with its dipole moment along the direction of the electric field then it will be in stable equilibrium. IF we keep the same dipole inverted ie its dipole moment opposite to the external field then the dipole will be in unstable equilibrium.
What is cell specialisation?
The quasi-balanced state of a thermodynamic system near to thermodynamic equilibrium, in some sense. In a quasistatic or equilibrium process, a sufficiently slow transition of a thermodynamic system from one equilibrium state to another occurs such that at every moment in time the state of the system is close to an equilibrium state. During a quasistatic process, the system reaches equilibrium much faster, almost instantaneously, than its physical parameters vary.
Where did bless you come from when a person sneezes?
It was once believed that the violence of a sneeze, momentarily displaced your soul from your body. During that moment, people thought the devil could step in, and take you over. By saying "bless you" someone else could keep the devil from inhabiting you.
A body is in equilibrium when it's?
when it is at rest, or in constant uniform motion with net force and moment of zero (no acceleration)
Where is Combat Applciation Tourniquet on injury extremity?
In the area of two to four inches above the wound. The everpresent Corpsman will be their momentarily. He is busy at the moment with a sucking chest wound.
What does it mean for a body to be in equilibrium and what are the conditions for a body to be in equilibrium?
A body to be in equilibrium means that the net forces ( resultant force ) acting on the body is "Zero".This can occur in two cases :-When bodies at rest, e.g. , a parked car, a box at rest ... ( usually the downward weight balances the upward reactions ).When a body is moving with uniform speed in a straight line , e.g. , a car or a plane moving with uniform speed in a straight line ... ( usually the driving force of engine balances the force of friction or drag force ).If a body is in equilibrium under the action of several parallel forces, it must satisfy two conditions :-The sum of the forces in one direction MUST equal the sum of the forces in the opposite direction.The principle of moments must apply . It states that : "The sum of anticlockwise moments about any point is equal to the sum of the clockwise moments about that point" .( If there is no equilibrium , i.e. there is a resultant moment/force different from "Zero"; the resultant moment/force produces rotation/acceleration of the system or body. )
What is the non concurrent force?
Forces that do not intersect at a single point can create rotation (moment). Equilibrium requires X and Y resultants to be zero AND the total moment to be zero. para sa mga TAGA BENEDICT.. HARVEY...
