At a given instant in an airplane race, airplane A is flying horizontally in a straight line, and its speed is being increased at a rate of 6 m/s2. Airplane B is flying at the same altitude as airplane A and, as it rounds a pylon, is following a circular path of 200-m radius. Knowing that at the given instant the speed of B is being decreased at the rate of 2 m/s2, determine, for the positions shown,
(a) The velocity of B relative to A,
(b) The acceleration of B relative toA.
