Iona Prep Physics Puzzle

Rotational Dynamics Problem 2

Animation 1 Animation 2 Animation 3 Animation 4

Description

A wheel rolls without slipping while pulled by a string wrapped around its circumference as shown in the animation (position is given in meters and time is in seconds). 

Question

Which animation properly depicts the physical situation?

Reference

See Giancoli-PA: 8-3, Giancoli-SE: 10-3.

Credits

Physlet problem authored by Mario Belloni.