Two air plans A and B are moving as described bellow Motion of A is given in polar coordinates with r 4r m, and 0= 0 where t is in seconds Motion of B is given as x =12t and y = 7.5t 1. Calculate v,,a, , and a, att = 10 seconds 2. Calculate rate of change of the speed of both A and B atr=10 seconds 3. Calculate radius of curvature of both planes at /= 10 seconds 4. Calculate v and a, using both vector analysis and by drawing velocity and acceleration diagrams at/ 10 seconds Att =0, both planes are at x = y 0 1600 1400 1200 1000 E 800 600 400 200 50 100 150 200 250 x (m)