always use significant figure rules. remember that these rules apply to all numbers that are measurements…

always use significant figure rules. remember that these rules apply to all numbers that are measurements. city b is north of city a, and the 400 mile trip by car takes 8 hours. the cities are 320 miles apart in a straight line. what is the velocity of a trip from city a to city b?

always use significant figure rules. remember that these rules apply to all numbers that are measurements. city b is north of city a, and the 400 mile trip by car takes 8 hours. the cities are 320 miles apart in a straight line. what is the velocity of a trip from city a to city b?

Answer

Explanation:

Step1: Identificar la fórmula de velocidad

La velocidad $v$ se define como $v=\frac{d}{t}$, donde $d$ es la distancia y $t$ es el tiempo. La velocidad es un vector, entonces necesitamos la distancia recta (desplazamiento) y el tiempo. La distancia recta entre las ciudades es $d = 320$ millas y el tiempo $t=8$ horas.

Step2: Calcular la velocidad

$v=\frac{320}{8}=40$ mph. Como la ciudad B está al norte de la ciudad A, la dirección es norte.

Answer:

40 mph N