Two curling rocks of equal mass, one orange and the other blue, are involved in a perfectly elastic, glancing collision. the blue rock is initially at rest and is struck by the orange rock which is moving at a speed voi " 6 m/s. after the collision, the orange rock moves along a direction that makes an angle of θ " 20o with its initial direction of motion. notes: it turns out for a collision like this, the angles will make a 90o angle between them. assuming this in your solutions will be considered incorrect. f(a) what is the angle that the yellow rock makes with the initial direction of motion? (b) what is the velocity of the orange rock after the collision?