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Is momentum conserved when two lumps of clay with equal and opposite momenta have a head on collision and come to rest?
Wiki User
∙ 14y ago
The momentum of the two lumps of clay are the same since the momentum is the same before and after the collision. The kinetic energy is not conserved but transformed into gravitational potential energy (GPE) since the position of motion has changed.
*Keep in mind: KE is the energy of motion.
GPE is the energy that something posses due to its position.
:)
Wiki User
∙ 11y ago
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Object A strikes object B the momentum of object B increase what happens to the momentum of object A?
You can't think of momentum as simply "increasing" and "decreasing" - you have to consider momentum as a vector.If in a collision one object's momentum changes by a certain amount, call it "a", the momentum of the other object will change by the opposite amount, "-a" - both "a" and "-a" are vectors that add up to zero. If you consider only the magnitudes of the momentum, by conservation of energy the momenta can't both increase - but they can certainly both decrease, when objects collide head-on.
How do collision exemplify the law of conservation of momentum?
The vector sum of momenta before and after the collision is the same. One way to visualize this is that if one of the colliding objects changes its momentum (mass x velocity) in one direction, then the other colliding object must needs change its momentum in the opposite direction - by the same amount, except for the direction.
Which equation is a statement of the law of conservation of momentum?
One way to write it is: dp/dt = 0. That means that the rate of change of momentum over time is zero (using "p" as the symbol for momentum). Another way, which is often useful to calculate collisions, is: Ʃp(time 1) = Ʃp(time 2), which means that the sum of all momenta before the collision must be the same as the sum of all momenta after the collision.
How do collisions exemplify the law of conservation of momentum?
The vector sum of momenta before and after the collision is the same. One way to visualize this is that if one of the colliding objects changes its momentum (mass x velocity) in one direction, then the other colliding object must needs change its momentum in the opposite direction - by the same amount, except for the direction.
What is the formula for momentum ti find the momentum of each ball before and after the collision and assume the mass of each ball is 0.4 kg?
You didn't supply enough information to solve this problem. Two formulae are important to solve problems with momentum: (1) the definition of momentum: momentum = mass x velocity. (2) the total momentum (sum of individual momenta) before and after the collision must be the same.
Object A strikes object B the momentum of object B increase what happens to the momentum of object A?
You can't think of momentum as simply "increasing" and "decreasing" - you have to consider momentum as a vector.If in a collision one object's momentum changes by a certain amount, call it "a", the momentum of the other object will change by the opposite amount, "-a" - both "a" and "-a" are vectors that add up to zero. If you consider only the magnitudes of the momentum, by conservation of energy the momenta can't both increase - but they can certainly both decrease, when objects collide head-on.
How do collision exemplify the law of conservation of momentum?
The vector sum of momenta before and after the collision is the same. One way to visualize this is that if one of the colliding objects changes its momentum (mass x velocity) in one direction, then the other colliding object must needs change its momentum in the opposite direction - by the same amount, except for the direction.
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.
Which equation is a statement of the law of conservation of momentum?
One way to write it is: dp/dt = 0. That means that the rate of change of momentum over time is zero (using "p" as the symbol for momentum). Another way, which is often useful to calculate collisions, is: Ʃp(time 1) = Ʃp(time 2), which means that the sum of all momenta before the collision must be the same as the sum of all momenta after the collision.
How do collisions exemplify the law of conservation of momentum?
The vector sum of momenta before and after the collision is the same. One way to visualize this is that if one of the colliding objects changes its momentum (mass x velocity) in one direction, then the other colliding object must needs change its momentum in the opposite direction - by the same amount, except for the direction.
What is the formula for momentum ti find the momentum of each ball before and after the collision and assume the mass of each ball is 0.4 kg?
You didn't supply enough information to solve this problem. Two formulae are important to solve problems with momentum: (1) the definition of momentum: momentum = mass x velocity. (2) the total momentum (sum of individual momenta) before and after the collision must be the same.
What is the definition of momentom?
the Law Of Conservation Of Momentum or 'LOCOM' states that total momentum is constant. in other words initial momentum= final momentum...if you don't understand that, then............ LOCOM states that... PROVIDED THAT THERE ARE NO EXTERNAL FORCES ACTING ON A SYSTEM OF COLLIDING BODIES,THE VECTOR SUM OF THE MOMENTA BEFORE COLLISION IS EQUAL TO THE VECTOR SUM AFTER THE COLLISION.----------------> =
If two objects have the same velocity do they have the same momentum?
No, because momentum depends on velocity and mass so they may have the same velocity but if they have different masses then they will have different momenta. (momenta is the plural form of momentum.)
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.
Is it possible to have collision in which all the momentum is lost?
In short no. Momentum is always conserved so you always end up with exactly the same amount you started off with.One subtelty is that momentum is a vector quantity so direction matters. Thus if you have two balls of equal mass moving with the same speed in opposite directions their momenta are equal in magnitude (size) but oppositely directed so the total momemtum is p+(-p)=0 to start with.A second subtelty emerges when we consider more complicated cases. If there are forces acting on the colliding bodies eg friction then we can 'lose' momentum to these forces (although really we just need to be more careful with the book-keeping).
When a bullet is fired from a rifle does the bullet have a greater momentum and kinetic energy than the rifle?
The momenta of the rifle and the bullet are equal and opposite. The bullet has greater kinetic energy than the rifle.
Can momenta cancel?
Yes. If the force of momentum is equal in both directions, the momentum will cancel. This can occur if two objects with equal momentum traveling in different directions collide.
