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 train starts from rest and travels for 5.0 s with a uniform acceleration of 1.5 m/s². what is the final velocity of the train?

always use significant figure rules. remember that these rules apply to all numbers that are measurements. a train starts from rest and travels for 5.0 s with a uniform acceleration of 1.5 m/s². what is the final velocity of the train?

Answer

Explicación:

Paso 1: Identificar la fórmula

La fórmula para la velocidad final en un movimiento uniformemente acelerado es $v = v_0+at$, donde $v_0$ es la velocidad inicial, $a$ es la aceleración y $t$ es el tiempo. Dado que el tren parte del reposo, $v_0 = 0$.

Paso 2: Sustituir valores

Sustituimos $v_0 = 0$, $a=1.5\ m/s^{2}$ y $t = 5.0\ s$ en la fórmula. Tenemos $v=0+(1.5\ m/s^{2})\times(5.0\ s)$.

Paso 3: Realizar el cálculo

$v=(1.5\times5.0)\ m/s = 7.5\ m/s$.

Respuesta:

$7.5$