Questions Learning Videos
Account questions
Learning video's unclear
The easiest way to ask questions about the videos is by leaving comments on our YouTube or Facebook. We check these comments regularly.
If you have a specific question, you can always email me at martijntct@gmail.com or call at Phone.
Abbreviations and definitions
Name | Description | Used on site |
---|---|---|
Drag | Drag is a force that acts against the forward movement of an object passing through a fluid (such as air or water). It is a type of friction that slows down the object and reduces its efficiency. The amount of drag depends on factors such as the shape, size, and speed of the object, as well as the properties of the fluid it is moving through. | |
Model | A model is a representation of something, often on a smaller scale than the original. It can also refer to a simplified description or system used to assist calculations and predictions. A model can also be an example for imitation or emulation. |
Literature and Links
Autors | Name | Description | Taggs | Link |
---|---|---|---|---|
Brunel University | Shot Put Projection Angle | A webpage that describes the math of the optimum projection angle when throwing a shot put. | More Info |
Log in to your account
If you're having trouble logging in, you can contact us at martijntct@gmail.com or call at Phone.
Subscription questions
At the moment, the TREFF site doesn't charge anything for its services. However, there is a monthly limit on the number of calls per account to prevent excessive data usage. If you need more data calls, please email me. If you appreciate our work and would like to support us, feel free to use the "Buy Me a Coffee" button.