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Choose the correct alternative. Person...

Choose the correct alternative.
Person has a mass of 8.4 kg. Its weight on moon if the value of 'g' on earth is `10 m//s^(2)`, will be

A

14 N

B

504 N

C

25 N

D

450 N

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Write down the weight of a 50 kg mass on the earth. (g = 9 .8 m//s^2)

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Knowledge Check

  • A body has a mass M kg on the earth .What will be its weight on the earth ?

    A
    Mg newton
    B
    `((M)/(8))` newton
    C
    M newton
    D
    Zero

  • The weight of a body on the surface of the earth is 10 kg. Its weight at the centre of the earth is

    A
    0 kg
    B
    5 kg
    C
    10 kg
    D
    Infinite

  • The Earth is not a perfect sphere. Due to the flattening of Earth at the poles, the radius of Earth is minimum at the poles and hence the value of g is maximum at the poles. One the other hand, the radius of the Earth is maximum at the equator of the Earth. As the mass and radius of moon are smaller than that of the Earth, so the value of g on moon is 1 . 63 m//s ^(2) . As we go up from the surface of the Earth, the distance from the centre of the Earth increases and hence the value of g decreases. The value of g decreases as we go down inside the Earth and it become zero at the centre of the Earth . If a person with a spring balance and a body hanging from it goes up and up in an aeroplane, then the reading of the weight of the body as indicated by the spring balance will be

    A
    increases
    B
    decreases
    C
    remain same
    D
    first increases and then decreases

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    If the mass of the earth is 80 times of that of moon and its diameter is double that of moon and g on earth is 98m//sec^2 ,then the value of g on moon is

    The mass of earth is 80 times that of moon. Their diameters are 12800 km and 3200 km respectively. The value of g on moon will be, if its value on earth is 980cm//s^(2)

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