A particle P passes through point A with velocity 2.8m/s and constant acceleration 0.12ms-2. Three seconds later a second particle Q passes through A with velocity 2.4m/s and constant acceleratoon 0.2 ms-2.
A) write down expressions for the displacement of P and Q from A, in terms of t,where t s is the time after P passed through A.
B) show that, when the particle meet, 2t2-50t-315=0