0
v2=(m1*v1)/m2
when:
v2= velocity after collision
m1 = mass before collision
v1 = velocity before collision
m2 = total mass after collision
law of conservation of momentum
Wiki User
∙ 12y ago
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.
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What is glancing collision?
A collision where the velocity remains the same but there is impact still.
Is velocity conserved in elastic conditions?
Nah, brah. Momentum and kinetic energy are conserved, but velocity is not. Correct me if I am wrong but from how I interpret this, any collision cause the colliding bodies to change their direction. Thus velocity, which is a vector quantitiy containing direction, is by definition changed in an elastic collision. I guess speed, which is the magnitude of the velocity, can be considered as being conserved?
What is collision?
A collision is an isolated event in which two or more moving bodies (colliding bodies) exert forces on each other for a relatively short time.Although the most common colloquial use of the word "collision" refers to accidents in which two or more objects collide, the scientific use of the word "collision" implies nothing about the magnitude of the forces.Types of collisionsA perfectly elastic collision is defined as one in which there is no loss of kinetic energy in the collision. In reality, any macroscopic collision between objects will convert some kinetic energy to internal energy and other forms of energy, so no large scale impacts are perfectly elastic. However, some problems are sufficiently close to perfectly elastic that they can be approximated as such. An inelastic collision is one in which part of the kinetic energy is changed to some other form of energy in the collision. Momentum is conserved in inelastic collisions (as it is for elastic collisions), but one cannot track the kinetic energy through the collision since some of it is converted to other forms of energy.Collisions in ideal gases approach perfectly elastic collisions, as do scattering interactions of sub-atomic particles which are deflected by the electromagnetic force. Some large-scale interactions like the slingshot type gravitational interactions between satellites and planets are perfectly elastic.Collisions between hard spheres may be nearly elastic, so it is useful to calculate the limiting case of an elastic collision. The assumption of conservation of momentum as well as the conservation of kinetic energy makes possible the calculation of the final velocities in two-body collisions.
What instrument helps you calculate the velocity of a human?
barometer
How do you calculate force when mass and velocity are given?
Force equals the mass times the rate of change of the velocity.
Two balls of masses 500gram and 200 gram are moving at valocities 4m s and 8m s respectively on collision they stick together find the velocity af the system after collision?
The idea is to use conservation of momentum. Calculate the total momentum before the collission, add it up, then calculate the combined velocity after the collision, based on the momentum.
Which type of collision occurs when a baseball bat hits a baseball?
inelastic collision The formulas for the velocities after a one-dimensional collision are: where V1f is the final velocity of the first object after impact V2f is the final velocity of the second object after impact V1 is the initial velocity of the first object before impact V2 is the initial velocity of the second object before impact M1 is the mass of the first object M2 is the mass of the second object CR is the coefficient of restitution; if it is 1 we have an elastic collision; if it is 0 we have a perfectly inelastic collision
What is glancing collision?
A collision where the velocity remains the same but there is impact still.
What is the formula for perfectly elastic collision?
Total momentum before = total momentum afterTotal kinetic energy before = total kinetic energy afterSum of x-components of velocity before = sum of x-components of velocity after.Sum of y-components of velocity before = sum of y-components of velocity after.Sum of z-components of velocity before = sum of z-components of velocity after.
A 1 kg mass is sliding along a frictionless surface at plus 6 ms and collides with another object mass equals 3 kg at rest The collision is perfectly inelastic What is the velocity of the 1kg obj?
In a perfectly inelastic collision, the two objects stick together and the momentum is conserved. Once the objects stick together, they both have the same velocity. p = mv where p is the momentum conservation of momentum for perfectly inelastic collision: m1v1i + m2v2i = (m1 + m2)vf (1kg)(6m/s) + (3kg)(0m/s) = (1 kg + 3kg)vf 6 kg·m/s = (4kg) vf vf = v1f = v2f = 1.5 m/s
What is the difference between inelastic collision and perfectly inelastic collision?
In an inelastic collision kinetic energy is lost (generally through energy used to change an objects shape), but the two objects rebound off each other with the remaining kinetic energy. In a perfectly inelastic collision the two objects stick together after the collision.
The collision between two helium atoms is perfectly elastic so that momentum is conserved?
Momentum is always conserved in any type of collision. Energy conservation, however, is dependant on elasticity. In a perfectly elastic collision all energy is conserved.
How do you calculate back-off time on an Ethernet link after a collision?
calculate backoff time on an Ethernet link after a collision? Select one:
Which expression represents the speed v of the masses after the collision?
Total momentum before the collision = total momentum after the collision As a reminder, momentum is the product of velocity and mass.
How do calculate the velocity of the boat relative to the shore?
Add the rivers velocity to the boats velocity
Why do you need to calculate velocity instead of speed?
Speed and Velocity are two different things . Velocity- "the rate at which an object changes its position." Speed- "How fast an object is moving". To calculate speed and velocity, you first need to calculate distance and time. Velocity is considered to be a more logical term
What is the law of conservaton of momentum?
(Objects moving on the same straight line, in the same direction, at constant velocity, no forces involved)>Momentum p = mass (kg) * velocity (metres per second)>At the moment of collision, the previous total momentum of both objects can be added to represent the momentum of what is now effectively one object.>Say object 1 is 25 kg mass travelling at 35 metres per second, and coming up behind (on the same line of travel) at 75 metres per second is a mass of 150 kg.>Total momentum prior to collision: ( and after collision)p = (25 * 35) + (150 * 75) = 875 + 11250 = 12125>Calculate velocity after collision (using total mass of both objects = 175 kg)12125 = 175 * velocity, so, velocity = 12125 / 175 = 69.285 metres / second
