Dos estudiantes corren en una pista. Se mantiene una velocidad constante de 4 m / s. El otro, que es más rápido, comienza 6 segundos después del primero y llega a los 20 segundos. ¿Cuál fue la velocidad promedio del corredor más rápido y qué distancia recorrió cada corredor en el momento de la segunda vuelta?
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Ответ:
B. about 9,200 N
Explanation: 100% right