Chapter 5.5, Problem 120PE

For Exercises 120-121, consider a projectile launched from ground level at an angle of elevation $\theta$ with an initial velocity $v_0$ . The maximum horizontal range is given by $x_{\max }=\frac{v_0^2\sin 2\theta }{g}$ , where g is the acceleration due to gravity $\left(g=32ft/{\sec }^2\text{or}g=9.8m/{\sec }^2\right)$ .

If a soccer ball is kicked from ground level with an initial velocity of 28 m/sec, what is the smallest positive angle at which the player should kick the ball to reach a teammate 48 m down the field? Assume that the ball reaches the teammate at ground level on the fly. Round to the nearest tenth of a degree