Coefficient of restitution and collisions Quiz
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5 questions, one answer each
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1. A ball hits a fixed wall at m s⁻¹ and rebounds at m s⁻¹. Find .
- A.
- B.
- C.
- D.
2. A ball with hits a wall at m s⁻¹. What fraction of its kinetic energy is lost?
- A.
- B.
- C.
- D.
3. A kg sphere at m s⁻¹ hits a stationary kg sphere. . Find the speed of the second sphere after the collision.
- A. m s⁻¹
- B. m s⁻¹
- C. m s⁻¹
- D. m s⁻¹
4. A sphere with in a direct collision. Which statement is true?
- A. Momentum is not conserved
- B. Kinetic energy is conserved
- C. The spheres coalesce
- D. The speed of separation is zero
5. Two spheres approach at m s⁻¹ and m s⁻¹ towards each other, with . Find their speed of separation.
- A. m s⁻¹
- B. m s⁻¹
- C. m s⁻¹
- D. m s⁻¹