Ncert Exercises & Solutions

Q. 16 The variation of angular position $θ$ , of a point on a rotating rigid body, with time t is shown in the figure. Is the body rotating clockwise or anti-clockwise?

Hint: Slope of

θ

-t gives angular velocity.

Step 1: Interpret the answer.

As the slope of

θ

-t graph is positive and positive slope indicates anti-clockwise rotation which is traditionally taken as positive.

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