Apologia Physics: Projectiles with Vernier's Video Physics App
Last Thursday we made catapults from popsicle sticks and rubber bands. We launched a ping pong ball and video recorded the projectile's path. Today we used Vernier's Video Physics, see below for link, to draw a graph of the trajectory including time of flight and the distance traveled in both the vertical and horizontal directions. The students picked six points from the graph and entered the x and y coordinates into their TI83/84 calculators. We now have the quadratic equation for the line of the trajectory. The students' assignment for next week is to use the formulas in module five of the physics book to determine the initial velocity of the ping pong ball and also the angle of flight.
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