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In an elastic collision...

In an elastic collision

A

Both momentum and KE are conserved

B

only momentum is conserved

C

only KE is conserved

D

Neither KE nor momentum is conserved

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The correct Answer is:
A
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Statement I: In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. Statement II: In an elastic collision, the linear momentum of the system is conserved.

STATEMENT-l : In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. STATEMENT-2 : In an elastic collision, the linear momentum of the system is conserved.

STATEMENT-1 : In an elastic collision between two bodies, the relative velocity of separation equals relative velocity of approach. and STATEMENT-2 : In a elastic collision , the coefficient of restitution is 1 .

Statement-1 : In an elastic collision in one dimension between two bodies, total momentum remains the same before, during and after the collision. Statement-2 : In an elastic collision in one dimension between two bodies, total kinetic energy remains the same before, during and after the collision.

STATEMENT-1 : When a projectile explodes in mid air the centre of mass follows circular path after explosion. STATEMENT-2 : In an elastic collision velocities can't be interchanged it colliding bodies have different masses. STATEMENT-3 : During a perfectly elastic collision the kinetic energy of the system remains constant.

Anwer carefully, with reasons: a) In an elastic collision of two billiard balls, is the total kinetic energy conserved during the short time of collision of the balls (i.e. when they are in contact)? Is the total linear momentum conserved during the short time of an elastic collision of two balls? c) What are the answers to a) and b) for an inelastic collision? d) If the potenital energy of two billiard balls depends only on the separation distance between their centers, is the collision elastic or inelastic? (note we are talking here of potential energy corresponding to the force during collision, not gravitational potential energy).

STATEMENT-1 : In an elastic collision between two balls, the total kinetic energy of the two bodies does not remain conserved during the collision. and STATEMENT-2 : As the balls collide, they compress each other.

STATEMENT - 1 : Two identical balls B and C lie on a horizontal smooth straight groove so that they are touching. A third identical ball A moves at a speed v along the groove. And collides with B as shown in figure. If the collisions are perfectly elastic, then after the collision, balls A and B will come to rest and ball C moves with velocity v to the right. because STATEMENT - 2 : In an elastic collision, linear momentum and kinetic energy are both conserved.

Which of the following statement(s) is/are incorrect regarding an elastic collision?

Object A strikes the stationary object B with a certain give speed u head-on in an elastic collision. The mass of A is fixed, you may only choose the mass of B appropriately for following cases. Then after the collision:

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  9. A body of mass M(1) collides elastically with another mass M(2) at res...

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  10. Two particles of mass m(A) and m(B) and their velocities are V(A) and ...

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  11. Two perfectly elastic particles A and B of equal masses travelling alo...

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  12. The collision of two balls of equal mass takes place at the origin of ...

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  13. A mass of 0.5 kg moving with a speed of 1.5 m//s on a horizontal smoot...

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  14. Two perfectly elastic particles A and B of equal mass travellinng alon...

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  15. A smooth sphere of mass M moving with velocity u directly collides ela...

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  16. A body of mass m(1) moving with a velocity 3 m//s collides with anothe...

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  17. A body of mass m moving with velocity v collides head on with another ...

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  18. The two diagrams show the situations before and after a collision betw...

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  19. A block of mass m moving at speed upsilon collides with another block ...

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  20. Sphere A of mass m moving with a constant velocity u hits another stat...

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