Problem 2) A projectile is fired at angle O from the ground that causes the projectile's maximum height to be equal to it's range. Find the angle 0. Define the initial launch velocity as vo, max height , and range . Note: Solve the equations in terms of variables and after some algebra you will end up with an angle greater than 70' and less than 80. Problem 4) A projectile needs to hit a target that is 4000 m away and 3000 m above the ground. If it leaves the floor with a speed of 840 m/s at what angle with respect with the horizontal must it depart the floor in order to hit the target? You may find the following trig identity useful