Cars A and B are d = 60 m apart and are traveling respectively at the constant speeds of (vA)0 = 32 km/h and (vB)0 = 24 km/h on an icecovered road. Knowing that 45 s after driver A applies his brakes to avoid overtaking car B the two cars collide, determine

(a) The uniform deceleration of car A,

(b) The relative velocity of car A with respect to car B when theycollide.