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What is the acceleration of free fall?...

What is the acceleration of free fall?

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All objects moving towards earth on account of gravitational force of earth on them are said to be in free fall. This force products a uniforme accelaration in the object. This is the acceleration of free fall, and is called acceleration due to gravity.
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Knowledge Check

  • Suppose that the acceleration of a free fall at the surface of a distant planet was found to be equal to that at the surface of the earth. If the diameter of the planet were twice the diameter of the earth, then the ratio of mean density of the planet to that of the earth would be

    A
    `4:1`
    B
    `2:1`
    C
    `1:1`
    D
    `1:2`

  • If radius of the earth is 6347 km, then what will be difference between acceleration of free falls and acceleration due to gravity near the earth's surface?

    A
    A. 0.34
    B
    B. 0.034
    C
    C. 0.0034
    D
    D. 0.24

  • Two masses of 5 kg and 10 kg are connected to a pulley as shown. What will be the acceleration if the pulley is set free? (g= acceleration due to gravity)

    A
    g
    B
    `g/4`
    C
    `(4g)/9`
    D
    `(5g)/9`

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    A disc like reel with massless thread unrolls itself while falling vertically downwards the acceleration of its fall is :

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