A rock is 2.5 meters above the ground and is shot out of a slingshot. It hits another rock which is 3.6 meters above the ground and 14 meters away from its initial position. The initial velocity of the rock is 15.9 m/s. Use the given formula to solve the problem: 1/2 * g * t² - (v_o * sin(theta)) + y. Also, use the formula x = (v_o * cos(theta)) * t. Find the values of t andθ.