Rebekah Johnson

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Activity

Using Direct Measurement Video to find the acceleration of a rocket-powered cart part of Pedagogy in Action:Library:Using Direct Measurement Videos to Teach Physics:Examples
A video of a student accelerating across a stage on a cart powered by a releasing compressed carbon dioxide from a fire extinguisher can be used to analyze constant acceleration. This video includes a to-scale ruler that students can use to find displacement, as well as a frame counter that can be used to find elapsed time. This lesson is meant to be a direct application of using the kinematic equations to solve for the acceleration of the cart.