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. if a car goes along a straight road heading east and speeds up from 45 ft/s to 60 ft/s in 5 s, calculate the acceleration. a = 3.0 ft/s²

always use significant figure rules. remember that these rules apply to all numbers that are measurements. if a car goes along a straight road heading east and speeds up from 45 ft/s to 60 ft/s in 5 s, calculate the acceleration. a = 3.0 ft/s²

Answer

Explicación:

Paso1: Identificar los valores iniciales y finales

La velocidad inicial $v_0 = 45$ ft/s, la velocidad final $v = 60$ ft/s y el tiempo $t = 5$ s.

Paso2: Aplicar la fórmula de aceleración

La fórmula de aceleración es $a=\frac{v - v_0}{t}$. Sustituyendo los valores: $a=\frac{60 - 45}{5}=\frac{15}{5}=3.0$ ft/s².

Respuesta:

$3.0$ ft/s²