Question

A particle moves clockwise in acircle of radius 1m with centre at `(x, y)=(1m, 0)`. It starts at rest at the origin at time `t=0`. Its speed increases at the constant rate of `(pi/2) m//s^(2)`. (i) Hpw long does it takes to travel halfway around the circle? (ii) What is the speed at that time?

Answer 1

Correct Answer - (i) `t=2s`, (ii) `3.14 m//s`
(a) `pi=0+1/2xxpi/2 t^(@)rArr t=2` sec
(b) `v=0+pi/2xx2=pi m//s`