Optimal angle for a projectile part 2: Hangtime : Khan Academy on a Stick

Khan Academy on a Stick

Optimal angle for a projectile

Optimal angle for a projectile part 1
Optimal angle for a projectile part 2: Hangtime
Optimal angle for a projectile part 3: Horizontal distance as a function of angle (and speed)
Optimal angle for a projectile part 4: Finding the optimal angle and distance with a bit of calculus

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