El motor de un coche de 1000 kg ejerce una fuerza de 10000 N cuando este se desplaza por una carretera horizontal. En estas condiciones el coche avanza con una velocidad constante de 108 km / h.
A) ¿Cuánto vale la fuerza total de rozamiento ejercida por el aire y la carretera?
B) Si se para el motor del coche, ¿cuánto tardara en detenerse en las condiciones anteriores?

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