Two particles P and Q are located at the origin of a co-ordinate system.Both the particle start moving simultaneously at time t=0 .Particle P moves with a constant speed of 2`pi` m/s on a circle `x^(2)+y^(2)+120y=0` in clock wise direction while Q moves with a constant acceleration such that at t=5s velocities of both are same.
Find :(a)The average acceleration of P during this time
(b)the position vectors and velocities of particles at t=5s

Explanation

(a)`(pi)/(5(-026hati)m//s^(2)`, (b) (30`hati`-7.8`hatj`)m,13.65`hati`-7.85 `hatj`)m,`pi(1.74hati-hatj`)m/s