Impulse

Impulse Quiz

Spec MB3–MB4 · AQA A-Level Further Maths: Quiz

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5 questions, one answer each

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  1. 1. A 0.20.2 kg ball moving at 1010 m s⁻¹ is hit back at 1515 m s⁻¹. Find the magnitude of the impulse.

    • A. 11 N s
    • B. 33 N s
    • C. 55 N s
    • D. 2.52.5 N s

  2. 2. A constant force of 4040 N acts on a 55 kg object at rest for 33 s. Its speed after is

    • A. 88 m s⁻¹
    • B. 2424 m s⁻¹
    • C. 120120 m s⁻¹
    • D. 1313 m s⁻¹

  3. 3. A force F=4tF=4t N acts for 0≤t≤30\le t\le3 on a 33 kg particle initially at rest. Find its final speed.

    • A. 66 m s⁻¹
    • B. 1818 m s⁻¹
    • C. 1212 m s⁻¹
    • D. 3636 m s⁻¹

  4. 4. A particle of mass 22 kg changes velocity from (i+2j)(\mathbf{i}+2\mathbf{j}) to (3i−j)(3\mathbf{i}-\mathbf{j}) m s⁻¹. Find the impulse.

    • A. (2i−3j)(2\mathbf{i}-3\mathbf{j}) N s
    • B. (8i+2j)(8\mathbf{i}+2\mathbf{j}) N s
    • C. (4i−6j)(4\mathbf{i}-6\mathbf{j}) N s
    • D. (4i+j)(4\mathbf{i}+\mathbf{j}) N s

  5. 5. A bat gives a ball an impulse of 33 N s. What impulse does the ball give the bat?

    • A. 33 N s in the same direction
    • B. 00 N s
    • C. 1.51.5 N s opposite
    • D. 33 N s in the opposite direction

Quiz