Rotational Dynamics

Experiment #13 from Advanced Physics with Vernier — Mechanics

In this experiment, you will

• Collect angular acceleration data for objects subjected to a torque.
• Determine an expression for the torque applied to a rotating system.
• Determine the relationship between torque and angular acceleration.
• Relate the slope of a linearized graph to system parameters.
• Make and test predictions of the effect of changes in system parameters on the constant of proportionality.

More Weight Lifting: Bicep Curls

Experiment #10 from Vernier Video Analysis: Conservation Laws and Forces

• Use video analysis techniques to obtain position, velocity, angle, angular velocity, and time data for a human subject performing a seated bicep curl.
• Analyze the rotational motion of the weight as it is raised during a bicep curl.
• Identify a portion of the lift where the weight’s angular velocity is relatively constant.
• Calculate the lift force for the constant angular velocity portion of the lift.
• [Extensions] Create and analyze your own videos of a person lifting in different ways.