A red ball undergoes projectile motion (position is in meters and time is in seconds). A red trail indicates the path of the ball.
What is the minimum speed of the projectile (position is shown in meters and time is shown in seconds)? Start
12 m/s.
See Giancoli-PA: 2-7, Giancoli-SE: 2-7.
Physlet problem authored by Mario Belloni.