Sobre un velero actúa la fuerza del motor de 900 N y perpendicularmente a ella, la del viento de 750 N. Si se mueve con MRU, ¿qué fuerza de rozamiento actúa sobre el barco?

Explanation:

We know that the sailboat has a uniform movement, therefore the total force, the engine, and the wind must be equal to the friction force.

Therefore the friction force is 1171.5 N.

I hope it helps you!

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

that would be because of both gravity and friction. so     c