Self Studies
Self Studies
Self Studies
Self Studies

Laws of Motion ...

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  • Question 1
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    A stone of mass 0.25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with a speed of 40 rev./min in a horizontal plane. The speed is then increased beyond the maximum permissible value, and the string breaks suddenly, which of the following correctly describes the trajectory of the stone after the string breaks

  • Question 2
    1 / -0

    A helicopter of mass 1000 kg rises with a vertical acceleration of 15 m s−2 . The crew and the passengers weigh 300 kg. Give the magnitude and direction of the force on the helicopter due to the surrounding air.

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