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The acceleration due to gravity is 9.8m/...

The acceleration due to gravity is `9.8m//s^(2)`

A

Much above the earth's surface

B

Near the earth's surface

C

Deep inside the earth

D

At the centre of the earth

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The acceleration due to gravity is 9.8 m s^(-2) . Give its value in ft s^(-2)

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Knowledge Check

  • A car is moving along a horizontal curve of radius 20 m , and coefficient of friction between the road and wheels of the car is 0.25 . If acceleration due to gravity is (9.8 m//s^(2)) , then its maximum speed is

    A
    `3 m//s`
    B
    `5 m//s`
    C
    `7 m//s`
    D
    `9 m//s`

  • A steel ball of radius 2 mm and of relative density 8.2 is falling through a liquid of relative density 1.9. Its terminal velocity is 0.7 m/s. What is the viscosity of the liquid if the acceleration due to gravity is 10m//s^2 ?

    A
    `4xx10^(-2)PI`
    B
    8PI
    C
    4 PI
    D
    `8xx10^(-2)` PI

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    A pebble is thrown vertically upwards from a bridge with an initial velocity of 4.9 m/s. It strikes the water at 2s. If acceleration due to gravity is 9.8 m//s^(2) (a) what is the height of the bridge ? (b) with what velocity does pebble strike the water ?

    A stone of density 2.5 g//cm^(3) completely immersed in sea water is allowed to sink from rest. Calculate the depth to which the stone would sink in two seconds. Neglect the effect of friction. Specific gravity of sea water is 1.025 and acceleration due to gravity is 9.8 m//s^(2) .

    Define acceleration due to gravity .

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