Physics 211
Lecture 1
Video Problem 3

Video Demonstration
1 minute and 42 seconds running time.

A particle is initially at rest at the top of a curved frictionless track. The x- and y-coordinates of the track are related by y=x2/(4 m), where the positive y-axis is in the vertical downward direction. As the particle slides down the track, what is its tangential acceleration? (In all answers, g is the acceleration due to gravity and "m" is meters.)