Secret Agent – Infiltrating an Abandoned Factory
    Date : January 2015
Author : Olivier Tardif-Paradis, Mathieu Riopel
College : Cégep Garneau
Demonstrations : Centre de démonstration en sciences physiques

Length : 2 - 3 hours
Related concept(s) : Rotational kinematics, moment of inertia, moment of force, rotational dynamics of a rigid body around a fixed axis
    In this activity, the students will try to slip a secret agent into a factory’s air duct. To do this, they have to determine the exact descent time of the platform the secret agent is standing on. The platform is attached to a cord, and the descent triggers the rotation of a radar antenna. The solution to the problem relies on the concepts of rotational dynamics.