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

always use significant figure rules. remember that these rules apply to all numbers that are measurements. a car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. calculate the average speed. v = mph 44.9 14.7 0.0222

always use significant figure rules. remember that these rules apply to all numbers that are measurements. a car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. calculate the average speed. v = mph 44.9 14.7 0.0222

Answer

Explicación:

Paso 1: Calcula la distancia recorrida en cada tramo

Utilizamos la fórmula $d = v\times t$. Para el primer tramo: $d_1=35.0\ mph\times1.00\ h = 35.0\ millas$. Para el segundo tramo: $d_2 = 40.0\ mph\times0.0500\ h=2.00\ millas$. Para el tercer tramo: $d_3 = 50.0\ mph\times2.00\ h = 100\ millas$.

Paso 2: Calcula la distancia total

$d_{total}=d_1 + d_2 + d_3=35.0+2.00 + 100=137\ millas$.

Paso 3: Calcula el tiempo total

$t_{total}=1.00 + 0.0500+2.00 = 3.05\ horas$.

Paso 4: Calcula la velocidad media

Utilizamos la fórmula $v_{media}=\frac{d_{total}}{t_{total}}$. $v_{media}=\frac{137\ millas}{3.05\ horas}\approx44.9\ mph$.

Respuesta:

44.9 mph