Question

A particle is moving along a circular path of radius 7 m from the point A and returns back to the same point in 8 s. (i) What is its average speed and average velocity? (ii) If the particle completes half the circle in the second round in 3 sec, what is the average speed and average velocity?

Answer 1

Answer:

Explanation:

R=7, so circumference = 2*22/7*7=44m

1 round distance =44m so average speed =44/8=5.5m/and average velocity =disp./time displacement =0 si velocity=0,,,,

now in half round distance =22m so average speed =22/3=7.33m/s

disp = 2*7=14

so average velocity =14/3m/s