Equilibrium of a particle

Equilibrium of a particle Quiz

Spec 5.2–3 · Edexcel International A Level Maths: Quiz

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5 questions, one answer each

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  1. 1. A particle of mass 5 kg rests on a rough horizontal table. The normal reaction is

    • A. 55 N
    • B. 4949 N
    • C. 4.94.9 N
    • D. 00 N

  2. 2. A particle of weight 20 N on a smooth plane at 30∘30^\circ is held by a force up the slope. The force is

    • A. 20cos⁡30∘20\cos30^\circ N
    • B. 2020 N
    • C. 20sin⁡30∘=1020\sin30^\circ=10 N
    • D. 20tan⁡30∘20\tan30^\circ N

  3. 3. A block rests on rough ground, pushed by a horizontal force of 8 N, and does not move. The friction force is

    • A. 88 N
    • B. μR\mu R always
    • C. 00 N
    • D. 8μ8\mu N

  4. 4. A box of mass 10 kg is pulled at 40∘40^\circ above the horizontal by a force TT. The normal reaction is

    • A. 98+Tsin⁡40∘98+T\sin40^\circ
    • B. 9898
    • C. 98−Tcos⁡40∘98-T\cos40^\circ
    • D. 98−Tsin⁡40∘98-T\sin40^\circ

  5. 5. A particle hangs in equilibrium from two strings. The sum of the vertical components of the tensions equals

    • A. zero
    • B. the weight of the particle
    • C. the sum of the tensions
    • D. the horizontal component

Quiz