At a given instant in an airplane race, airplane A is flying horizontally in a stralght line, and its speed is being increased at a rate of 6 m/s^2. Airplane B is flying at the same altitude as airplane A and as it round a pylon is following a circular path of 200 m radius. knowing that at the given instant of B is being decreased at the rate of 2 m/s^2, determine for the position show a) the velocity of B relative to A b)the acceleration of B relative to A.