Horizontal Relaxed, Nonsupported Drops

 

Description: The slinky is held by its two end coils only, and is kept at horizontal relaxed length before dropping.

 

Problems: There was no way to make sure that both hands held the slinky at the same height, and that the slinky was not tilted in planes other than the horizontal. Upon release, slight motion from fingers likely influenced the slinky's fall. Also, both ends of the slinky could not be released exactly at the same time.

click here to play

 

 

 

 

Observations:

 

In both clips, the slinky rotates very little during its drop. However, due to the slight rotation, the slinky does not land in a perfectly horizontal orientation.

Other drop clips:

 

nhrn1.avi--slinky may have hit the ground on its corner. It rebounds upward, while one end remains in contact with the ground.

nhrn2.avi--the slinky hits the ground and becomes flattened before bouncing horizontally and recontracting.

 

Investigations of Falling Slinky Motion

Introduction

Different types of plastic slinky drops

Observations of a plastic slinky being dropped from different configurations

Different types of metal slinky drops

Observations of a metal slinky, dropped from the vertical relaxed configuration

Physics of a dropped plastic slinky

Results and possible explanations for plastic slinky motion

Physics of a dropped metal slinky

Results and possible explanations for metal slinky motion

Conclusion