In an inelastic collision...

In an inelastic collision

the initia kinetic energy is equal to the finl kineitc energy

the final kinetic energy is less than the initial kineitc energy

the kinetic energy remains the constant

the kinetic energy first increases then decreases

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Which of the following statements is correct ? (i) In the elastic collsions , the final K.E. is equal to the initial k.E. (ii) In an inelastic collision , the final K.E. may be smaller or greater than the initial K.E . (iii) In every collision ,momentum is conserved. (iv) In completely inelastic collision , colliding particles stick to each other and move with same velocity. There will be loss of K.E.

`(i) ,(ii)`

`(i) ,(ii),(iii)`

`(i) ,(iii) ,(iv)`

all options are correct

momentum, kinetic energy and total energy are conserved.

momentum, kinetic energy and total energy are not conserved.

momentum and kinetic energy are conserved but total energy are conserved but total energy is not conserved

total energy and momentum are conserved but kinetic energy is not conserved.

the momentum of the ball just after the collision is same as that just before the collision

the mechanical energy of the ball remains the same during the collision

the total momentum of the ball and the earth is conserved

the total energy of theball and the earth remains the same