Two balls collide with each other it has been observed that the collision is elastic which statement advocates the information
Correct answer: A. KE before collision = KE after collision
- A. KE before collision = KE after collision
- B. momentum before collision is not equal to momentum after collision
- C. KE before the collision is not equal to KE after collision
- D. momentum before collision not equal to KE after collision
Explanation
In an elastic collision, kinetic energy as well as momentum is conserved. This means that the total kinetic energy of the system before the collision is equal to the total kinetic energy of the system after the collision.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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