what do u mean by elastic collision?

Answer 1

ardni_987 is exactly right. Momentum is always conserved even if the collision is not elastic. Total energy is always conserved even if the collision is not elastic. In elastic collisions, total energy remains in kinetic (motion) form. Consider the collision of two balls made of clay so they stick together when they hit. This is an inelastic collision. Ball 1 is moving at v1 and has mass m1. Ball 2 is stationary and has mass m2. By conservation of momentum, the momentum before collision is m1v1; the momentum after collision is (m1+m2)v2. Equating these and solving for v2 you get v2=(m1v1)/(m1+m2). The kinetic energy before collision is .5m1v1^2; after collision it's .5(m1+m2)v2^2; using the computed value of v2 gives the kinetic enery after collision as .5(m1^2)(v1^2)/(m1+m2) which is not the same as .5m1v1^2, so kinetic energy is not conserved in inelastic collisions. To solve a similar problem but with elastic collision, you form your equations by equating before and after kinetic energy AND momentum.

Answer 2

What Is An Elastic Collision

Answer 3

A perfectly elastic collision is defined as one in which there is no loss of kinetic energy in the collision. Any macroscopic collision between objects will convert some of the kinetic energy into internal energy and other forms of energy, so no large scale impacts are perfectly elastic. Collisions in ideal gases approach perfectly elastic collisions, simillarly 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

Answer 4

An elastic collision is a collision in which the two objects that collide actually bounce off one another, like elastic (ex: a tennis ball being bounced against a wall). In contrast, an inelastic collision is a collision in which the two objects stick together, such as a dart being thrown at a dart board.

Answer 5

Elastic Collision is the physical process where when two or more bodies undergo collision,
there occurs :
1. Consevation of Momentum -
m1u1+m2u2 = m1v1+m2v2
2. Conservation of Kinetic Energy -
1/2( m1u1^2 + m2u2^2)= 1/2(m1v1^2+ m2v2^2)

where, m1, m2=mass of two bodies,
u1, u2= velocities of two bodies before collision,
v1,v2= velocities of two bodies after collision.

Answer 6

Elastic collisions mean that kinetic energy is conserved, as well as momentum. Basically, imagine a pool table where the balls never slow down. For inelastic collisions, only momentum is conserved (here you would imagine like a lump of clay hitting something).

Answer 7

Don't you mean Collusion???

Answer 8

I guss there is no deformation in the bodies that they collide.

Answer 9

vagina