In this app we calculated the strength(second law of newton)
When we open the app we can see the next picture. In this interface we have to provide the data that this application needs to work and do the calculation. When we provide the data and give click on the button the result of the calculation will appear.
After we do click on the button "calcular fuerza". The app is going to give us the result of the operation in Newtons like we can see in the image below