A body is thrown at an angle $\alpha = 30°$ to the horizontal with speed $v_0 = 15$ m/s. Find the range of the body (the horizontal distance). The acceleration due to gravity is $g = 10$ m/s²; neglect air resistance.
Range for a throw at an angle to the horizontal:
$$L = \frac{v_0^2 \sin 2\alpha}{g}$$
$$L = \frac{15^2 \cdot \sin 60°}{10} = \frac{225 \cdot 0.866}{10} \approx 19.5 \text{ m}$$
$L \approx 19.5$ m