simple pulley problem questions with solutions

Showing 1–10 of 29 questions

• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  A 10 kg trolley on a horizontal track is connected by a string over a pulley to a hanging 2 kg block. Coefficient of kinetic friction between trolley and track is 0.05; g=10 m s⁻². Find their acceleration.

  

  Options

  • Option A

    1.25 m s⁻²

  • Option B

    1.50 m s⁻²

  • Option C

    1.66 m s⁻²

  • Option D

    1.00 m s⁻²

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  In the pulley system shown, masses are A=1 kg, B=3 kg and C=3 kg. The acceleration of A and tension in string AB are:

  

  Options

  • Option A

    g/4 downward, 8g/7

  • Option B

    g/4 upward, g/7

  • Option C

    g/7 downward, 6g/7

  • Option D

    g/2 upward, g

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• IntegermediumNewtons law of motion and Frictionsimple pulley problem

  A hanging mass M is connected to a 4M block on a frictionless horizontal ice slab by the pulley-string system shown. A horizontal pull 2Mg acts on the 4M block. If string tension is (x/5)Mg, find x.

  

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  If the cable tension supporting an elevator equals the elevator's weight, the elevator may be:

  Options

  • Option A

    Going up with increasing speed; or going down with uniform speed

  • Option B

    Going down with increasing speed; or going up with uniform speed

  • Option C

    Going up with uniform speed; or going down with uniform speed

  • Option D

    Going up with increasing speed; or going down with increasing speed

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  Blocks A, B and C of equal mass m are placed in three pulley arrangements and have accelerations a₁, a₂ and a₃. External forces are F₁=2mg and F₂=mg as shown. The correct order is:

  

  Options

  • Option A

    a₁=a₂=a₃

  • Option B

    a₁>a₂>a₃

  • Option C

    a₁=a₂>a₃

  • Option D

    a₁>a₂=a₃

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  In the equilibrium system shown, block m₁=5 kg lies on a smooth incline and m₂=3 kg hangs. Find the force applied by the incline on block m₁.

  

  Options

  • Option A

    30 N

  • Option B

    50 N

  • Option C

    40 N

  • Option D

    60 N

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  As per given figure, a weightless pulley P is attached on a double inclined frictionless surface. The tension in the string (massless) will be (if g = 10 m/s²)

  

  Options

  • Option A

    (4√3 + 1) N

  • Option B

    4(√3 + 1) N

  • Option C

    4(√3 - 1) N

  • Option D

    (4√3 - 1) N

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  Two equal masses M are arranged with a fixed pulley and a movable pulley as shown. If the mass on the incline moves down, the string tension is:

  

  Options

  • Option A

    (2/3)Mg sinθ

  • Option B

    (3/2)Mg sinθ

  • Option C

    (1/2)Mg sinθ

  • Option D

    2Mg sinθ

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  Two masses m₁ and m₂ hang over a frictionless pulley. Their acceleration magnitude is:

  

  Options

  • Option A

    (m₁/m₂)g

  • Option B

    (m₂/m₁)g

  • Option C

    (m₂-m₁)g/(m₁+m₂)

  • Option D

    (m₁+m₂)g/(m₂-m₁)

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• MCQmediumNewtons law of motion and Frictionsimple pulley problem

  Two masses M₁ and M₂ hang on an ideal Atwood machine. When M₂=2M₁ the acceleration is a₁; when M₂=3M₁ it is a₂. The ratio a₁/a₂ is:

  

  Options

  • Option A

    1/3

  • Option B

    2/3

  • Option C

    3/2

  • Option D

    1/2

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