Q1An object is moving along the circumference of a circular track of radius R. What is average velocity of the object when it covers 3th4 of its circumference in 2 s.
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Given : A particle is moving along the circumference of a circular track of radius R m.
To Find : the average velocity of particle when it covers 3/4th of its circumference in 2 second
Solution:
a circular track of radius R m.
Complete circumference = 360°
(3/4) * 360° = 270°
Hence Displacement = √r² + r² = r√2 = R√2 m as radius r = R m
Time = 2
average velocity of particle = Displacement / Time
=> average velocity of particle = R√2 /2 = R/√2 m/s
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