Question

A particle moving along the circumference of a circle of radius 1metre completes 3/4 of a circle in 10sec.what is the average velocity of the particle

Answer 1

avg velocity = displacement/time

$displacement = \sqrt{2} \\ avg \: velocity = \frac{ \sqrt{2} }{10} = \frac{1.414}{10 } \\ = 0.1414 m \frac{m}{s}$