Direct impact and Newton's law of restitution

Direct impact and Newton's law of restitution Quiz

Spec 4.1 · Edexcel A-Level Further Maths: Quiz

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  1. 1. A ball hits a fixed smooth wall at right angles at 1212 m s−1^{-1}. The coefficient of restitution is 0.250.25. Find the rebound speed.

    • A. 4848 m s−1^{-1}
    • B. 99 m s−1^{-1}
    • C. 33 m s−1^{-1}
    • D. 12.2512.25 m s−1^{-1}

  2. 2. Two equal smooth spheres collide directly with e=1e=1. AA moves at 66 m s−1^{-1} and BB is at rest. What happens?

    • A. AA is at rest and BB moves at 66 m s−1^{-1}
    • B. Each moves at 33 m s−1^{-1}
    • C. AA moves at 66 m s−1^{-1} and BB is at rest
    • D. AA moves at −3-3 m s−1^{-1} and BB at 99 m s−1^{-1}

  3. 3. Which of these cannot be a coefficient of restitution?

    • A. 00
    • B. 0.60.6
    • C. 11
    • D. 1.21.2

  4. 4. A 11 kg sphere moving at 66 m s−1^{-1} hits a 22 kg sphere at rest. The coefficient of restitution is 0.50.5. Find the kinetic energy lost.

    • A. 66 J
    • B. 99 J
    • C. 1818 J
    • D. 4.54.5 J

  5. 5. A 0.40.4 kg ball hits a wall at right angles at 1010 m s−1^{-1} and rebounds at 66 m s−1^{-1}. Find ee.

    • A. 0.40.4
    • B. 0.80.8
    • C. 0.60.6
    • D. 0.160.16

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