Khan Academy Static

This tutorial tackles a fundamental question when trying to launch things as far as possible (key if you're looking to capture a fort with anything from water balloons to arrows). With a bit of calculus, we'll get to a fairly intuitive answer.

9932_Optimal_angle_for_a_projectile_part_1_Components_of_initial_velocity.html

9934_Optimal_angle_for_a_projectile_part_3_Horizontal_distance_as_a_function_of_angle_and_speed_.html

9935_Optimal_angle_for_a_projectile_part_4_Finding_the_optimal_angle_and_distance_with_a_bit_of_calculus.html

9933_Optimal_angle_for_a_projectile_part_2_Hangtime.html