Two particles A and B are moving in opposite direction on a circle. Initially particle A and B are diagonally opposite to each other. Particle A move with angular velocity π rad/s, angular acceleration π2 rad/s2 and particle B moves with constant angular velocity 2π rad/s. Find the time after which both the particles A and B will collide.
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Tip: When two bodies are in motion simultaneously, then it's always advisable to solve from relative frame. Use of relative motion technique will make one body come to rest and problem will become simple.