Q. 4.9 A cyclist starts from the centre of a circular park of radius
reaches the edge
of the park, then cycles along the circumference, and returns to the centre along
as shown in Fig. 4.21. If the round trip takes
what is the
(b) average velocity,
(b) Average velocity is defined as the net displacement per unit time. Since we have the net displacement to be zero the average. Velocity will also be zero.