YP Projectiles is a projectile motion simulator designed for physics teachers and students. To simulate a trajectory, the user chooses the initial velocity (magnitude and direction), the vertical displacement component and the gravitational acceleration. The software then draws the parabolic trajectory and writes its main characteristics: range, maximum height reached, etc. During the simulation, it is possible to display three vectors: acceleration, velocity and position, and three graphs: acceleration, velocity and position versus time. Many trajectories can be superposed in the same window, in the same scale. Trajectories, numerical data and graphs may be printed or copied to be used in other software. Trajectories may be also saved as PICT files.

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