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What happens to the total momentum of two objects in a system before and after interactions?
Wiki User
∙ 11y ago
The total momentum before the collision is the same as the total momentum after the collision. This is known as "conservation of momentum".
Vern Armstrong
Wiki User
∙ 11y agoObjects Sticking Together
Sometimes, objects stick together after a collision. The football players shown in Figure 3 are an example of such a collision. A dog leaping and catching a ball and a teen jumping on a skateboard are also examples. After two objects stick together, they move as one object. The mass of the combined objects is equal to the masses of the two objects added together. In a head-on collision, the combined objects move in the direction of the object that had the greater momentum before the collision. But together, the objects have a velocity that differs from the velocity of either object before the collision. The objects have a different velocity because momentum is conserved and depends on mass and velocity. So, when mass changes, the velocity must change, too.
Figure 3 Examples of Conservation of Momentum
Wiki User
∙ 14y agoconservation of momentum
total momentum of the system before collision is equal to the total momentum of the system after collision.
Wiki User
∙ 13y agolet u1,u2 is velosity before collision of masses m1,m2 & v1,v2 are the velosity after collision then momentum after collision isP=m1v1+m2v2
Wiki User
∙ 11y agoThe Law of Conservation of Momentum states that the total momentum doesn't change. It is the same, before and after the interaction.
Wiki User
∙ 7y agoThe total momentum before the collision is the same as the total momentum after the collision. This is known as "conservation of momentum".
War Samurai
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What is the recoil velocity of the pistol when a bullet of mass 20g is fired with a velocity 150ms from a pistol of mass 2kg?
Momentum before = momentum after. Since there was no movement before, momentum before = 0 If you think of the bullet as forward/positive momentum and the gun as backward/negative momentum then the momentum of the bullet plus the momentum of the gun =0 and therefore the momentum of the bullet = the momentum if the gun. momentum = mass x velocity P=m/v 20gx150m/s = 2000g (2kg) x velocity 3000 = 2000v 3000 / 2000 = v v = 1.5m/s
If two objects collide they each have the same momentum as they had before the collision?
The momentum of this case is equal to the summation of cross product of mass and velocity of both. How ever after the collision, some energy is converted into other form like sound and heat. This phenomena caused the momentum efficiency (e) In this case (masses are equal), e is equal to the ratio of the velovities summation of both masses between after and before hitting each other. e = ((V1'+V2')/(V1+V2));
What happens if bacteria are not trapped before air enters the lungs?
You get pneumonia
Before mitosis begins which happens before the nucleus starts dividing?
Before the nucleus starts dividing the process of DNA copying takes place
What happens before DNA transcriptions begins?
RNA polymerase is guided to the correct place.
How does the momentum of two objects before a collision compare with the momentum after the collision?
conservation of momentum
The momentum before a collision of three objects is always greater than the momentum after the collision True or false?
False - the thing to remember is that momentum is conserved.
What happens to the speed of pursued plane when it returns the fire?
When the pursued plane returns the fire, a conservation of momentum in its speed happens. The momentum after the event will be equal to the momentum before the event.
What happens to the speed of the pursued plane when it returns the fire?
When the pursued plane returns the fire, a conservation of momentum in its speed happens. The momentum after the event will be equal to the momentum before the event.
Give two examples showing the conservation of momentum give one example where momentum is not conserved?
Momentum like mass will always be conserved in any process. Momentum is the product of mass and velocity of the object. It is symbolically denoted as p=m*v where p = momentum, m = mass and v = velocity
What happens to the momentum of two objects which collide and stick together?
In a collision, a force acts upon an object for a given amount of time to change the object's velocity. The product of force and time is known as impulse. The product of mass and velocity change is known as momentum change. In a collision the impulse encountered by an object is equal to the momentum change it experiences.Impulse = Momentum Change. What happens to the momentum when two objects collide? Nothing! unless you have friction around. Momentum#1 + Momentum#2 before collision = sum of momentums after collision (that's a vector sum).
The momentum before a collision of three objects is always greater than tha momentum after the collision?
No. Newton's first law of motion states that the momentum of a system is conserved as long as there's no external force being applied on the system.
The law of conservation of momentum states that when two objects collide their combined momentum?
False $manning boi the great$
The momentum before a collision of three objects is always greater than the momentum after the collision?
Negative negative, and quite false as well.Regardless of how many objects are involved, and as long as the collisions are'elastic' ... meaning that no energy is lost in crushing, squashing, pulverizing, orheating any of the objects ... the grand total of all their momenta (momentums)after the collision is exactly the same as it was before the violence erupted.
How can before and after situations be compared for collisions using the law of conservation of momentum?
The momentum before and after is the same, due to the Law of Conservation of momentum. Thus if you calculate the momentum before, then you have the after momentum or vice-versa.
What does it means to say that momentum or any quantity is conserved?
In a closed system, the TOTAL initial momentum before an "event" is the same as the TOTAL final momentum (at the end).
How do you calculate velocity after perfectly collision?
To calculate the velocity after a perfectly elastic collision, you need to apply the principle of conservation of momentum and kinetic energy. First, find the initial momentum of the system before the collision by adding the momenta of the objects involved. Then, find the final momentum after the collision by equating it to the initial momentum. Next, solve for the final velocities of the objects by dividing the final momentum by their respective masses. Finally, make sure to check if the kinetic energy is conserved by comparing the initial and final kinetic energy values.
