Oblique impact

Oblique impact Quiz

Spec 5.1 · Edexcel A-Level Further Maths: Quiz

Studying this course? Keep your progress in one place.

Pick an answer for each. Quizzes never use energy.

5 questions, one answer each

Each answer is checked as you go, with why.

See all 5 questions

  1. 1. A sphere hits a smooth wall with components of velocity 99 m s−1^{-1} parallel and 1212 m s−1^{-1} perpendicular to the wall. e=13e=\frac13. Find its speed after impact.

    • A. 1515 m s−1^{-1}
    • B. 9.859.85 m s−1^{-1}
    • C. 44 m s−1^{-1}
    • D. 99 m s−1^{-1}

  2. 2. Which quantity is unchanged when a sphere obliquely hits a smooth fixed wall?

    • A. The component perpendicular to the wall
    • B. The speed of the sphere
    • C. The angle with the wall
    • D. The component parallel to the wall

  3. 3. A ball with velocity (4i−6j)(4\mathbf{i}-6\mathbf{j}) m s−1^{-1} hits a smooth floor with e=0.5e=0.5. Find its velocity after impact.

    • A. (4i+3j)(4\mathbf{i}+3\mathbf{j}) m s−1^{-1}
    • B. (2i+3j)(2\mathbf{i}+3\mathbf{j}) m s−1^{-1}
    • C. (4i−3j)(4\mathbf{i}-3\mathbf{j}) m s−1^{-1}
    • D. (2i+6j)(2\mathbf{i}+6\mathbf{j}) m s−1^{-1}

  4. 4. A 0.50.5 kg ball hits a smooth wall with components 44 m s−1^{-1} perpendicular and 77 m s−1^{-1} parallel to it. e=0.5e=0.5. Find the kinetic energy lost.

    • A. 44 J
    • B. 1.51.5 J
    • C. 33 J
    • D. 22 J

  5. 5. In an oblique collision of two smooth spheres, Newton's law of restitution is applied to which quantities?

    • A. The speeds of the spheres
    • B. The components of velocity along the line of centres
    • C. The components perpendicular to the line of centres
    • D. The kinetic energies of the spheres

Quiz