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ANGLE OF ROTATION The angle through whic...

ANGLE OF ROTATION The angle through which an object rotate (turns) about a fixed point is known as the angle of rotation.

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Define angle of rotation.

Rotation turns an object about a fixed point which is known as centre of rotation.

Knowledge Check

  • For a rotating body about fixed axis ,

    A
    every particle moves in a circle
    B
    the linearvelocity is related to angular velocity
    C
    Both (1) and (2) are correct
    D
    Both (1) and (2) are incorrect

  • Which of the following figures has 45^@ as angle of rotation?

    A
    B
    C
    D

  • A flywheel rotating about an axis experinces an angular retardation proportional to the angular through which it rotates its rotational kinetic energy gets reduced by DeltaE while it rotates through an angular theta then

    A
    `DeltaEproptheta^(2)`
    B
    `DeltaEpropsqrt(theta)`
    C
    `DeltaEproptheta`
    D
    `DeltaEproptheta^(3//2)`

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    Rotation turns an object about a fixed point. This fixed point is called__________.

    A right angled triangle rotate about its any side which makes right angle, the figure is formed

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