At time t = 0 a small ball is projected from point A with a velocity of 200 ft/sec at...

At time t = 0 a small ball is projected from point A with a velocity of 200 ft/sec at the 60^o angle. Neglect atmospheric resistance and determine the two times t₁ and t₂ when the velocity of the ball makes an angle of 45^o with the horizontal x-axis.