• 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. when a car is 200 meters from its starting position traveling at 30. m/s., it starts braking and comes to a stop 350 meters from its starting position in 10. s. calculate the acceleration.\n_____ m/s²\n○ -3.0\n○ -7.0\n○ -30.\n○ -4.0

• always use significant figure rules. remember that these rules apply to all numbers that are measurements. when a car is 200 meters from its starting position traveling at 30. m/s., it starts braking and comes to a stop 350 meters from its starting position in 10. s. calculate the acceleration.\n_____ m/s²\n○ -3.0\n○ -7.0\n○ -30.\n○ -4.0

Answer

Explicación:

Paso 1: Identificar los valores iniciales y finales

La velocidad inicial $v_0 = 30\ m/s$, la velocidad final $v = 0\ m/s$ (se detiene) y el tiempo $t = 10\ s$.

Paso 2: Aplicar la fórmula de la aceleración

La fórmula de la aceleración es $a=\frac{v - v_0}{t}$. Sustituyendo los valores: $a=\frac{0 - 30}{10}$.

Paso 3: Calcular el valor de la aceleración

$a=\frac{- 30}{10}=-3.0\ m/s^{2}$.

Respuesta:

-3.0