Please visit: https://phet.colorado.edu/. Search for Projectile Motion (HTML5). Click Play, then Lab.

Set-up: Ensurethe box titled "Air Resistance" is NOT checked.

1. Projectile Motion lab, launch different masses at the same initial launch velocity. What did this simulation suggest about the role of mass in projectile motion? Would you have observed the same results if air resistance had been considered? Explain why or why not.

2. In the Projectile Motion lab, to launch different masses at the same initial velocity, which of Newton's Laws BEST applies? Explain.