Direct Measurement Videos > Video Library > Student riding a rocket powered cart

Student riding a rocket powered cart


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This clip shows a student riding a cart powered by a carbon-dioxide fire extinguisher modified to act as a rocket. Students make measurements of the motion of the cart and use kinematics to calculate the cart's acceleration. Given the cart and rider's mass, they can use Newton's Second Law to calculate the force required to accelerate the cart. Finally, they can compare this to the measured force from the rocket.


Instructor Note

When teaching with this video, direct students to the student video library, which provides student access to all videos without links to instructor materials and solutions.

Three file formats are available to work with this video. For analysis in class, frame-by-frame viewing is needed.

DMV Player

download (Quicktime Video 2.1MB Jul7 12)


Teaching Materials

Classroom-ready activity:

Using Direct Measurement Video to find the acceleration of a rocket-powered cart

Sample question:

What is the average acceleration of the cart?