Simulation free fall of a steel ball

This example shows how to build physical component model based on physical connections to modeling free fall of a steel ball using Simulink

In free fall the distance fallen h is proportional to the square of the time t taken to fall that distance. The coefficient of that proportionality can be used to calculate the gravitational acceleration g.
Since the ball is not moving before it starts to fall at time t0 = 0 its initial velocity is zero, i.e. v0 = 0. Therefore the distance covered in time t is given as follows

h=1/2∙g∙t^2

Official web-site: http://www.virtlabs.tech

Paid Version (Google Play): https://play.google.com/store/apps/details?id=com.virtlab.free_fall_full

Free Version (Google Play): https://play.google.com/store/apps/details?id=com.virtlab.free_fall_demo

Free online-version (HTML5):
http://virtlabs.tech/apps/mechanics/04_demo/simulator.html

Video:
https://youtu.be/8seNlvfXfNU