JEE Main Physics question
The velocity of a particle moving in a straight line varies with time in such a manner that the versus graph is a smooth semicircular arc: velocity is zero at and , rising to a peak at the midpoint (a semicircle of radius resting on the time axis, with ). (i) Average velocity of the particle is . (ii) Such motion cannot be realized in practical terms.
Answer: (C)
Solution
For a semicircular – curve of radius (so ), the area under the curve is , giving average velocity — statement (i) is
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