Question

A particle moves in a circular path of radius 1.5 If particle makes 100 r. p. s then its speed will be ​

Answer 1

radius = 1.5

circumference = 2πr = 2 * (22/7) * 1.5 = 66/7

distance covered per second = 100 rounds = 100 * (66/7) = 942$\frac{6}{7}$

∴ speed = 942$\frac{6}{7}$

hope it helps you...