### About

# Ball Toss Video Model

The Ball Toss Video Model demonstrates how embed a video into a JavaScript EjsS model. The simulation superimposes the numerical solution of a ball computed by solving the a differential equation with a video of an actual ball toss. The user must adjust the initial conditions and the parameters so that both motions, the computed and the one displayed by the video, match.

This model requires EjsS version 5.1 or greater.

Ball Toss Video © Doug Brown

### Translations

Code | Language | Translator | Run | |
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### Software Requirements

Android | iOS | Windows | MacOS | |

with best with | Chrome | Chrome | Chrome | Chrome |

support full-screen? | Yes. Chrome/Opera No. Firefox/ Samsung Internet | Not yet | Yes | Yes |

cannot work on | some mobile browser that don't understand JavaScript such as..... | cannot work on Internet Explorer 9 and below |

### Credits

Francisco Esquembre; Felix J. Garca-Clemente; lookang

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### Sample Learning Goals

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### For Teachers

This simulation illustrates the parabolic trajectory of a thrown ball. The goal of the simulation is to match the trajectory of the ball with the given trajectory in the video.

The variables that can be adjusted are as follows:

x₀: The initial x-position of the ball

y₀: The initial y-position of the ball

vx₀: The initial x-velocity of the ball

vy₀: The initial y-velocity of the ball

g: The gravitational acceleration

Research

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### Video

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### Version:

- http://weelookang.blogspot.sg/2016/02/vector-addition-b-c-model-with.html improved version with joseph chua's inputs
- http://weelookang.blogspot.sg/2014/10/vector-addition-model.html original simulation by lookang

### Other Resources

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