QUESTION IMAGE
Question
change in velocity
a = \frac{}{time}
an object traveling at 10 m/s comes to a complete stop in 2 seconds. what is the objects acceleration?
5 m/s²
200 m/s²
-5 m/s²
Step1: Identificar la velocidad inicial y final
La velocidad inicial \( v_i = 10 \, \text{m/s} \), la velocidad final \( v_f = 0 \, \text{m/s} \) (se detiene).
Step2: Calcular el cambio de velocidad
\(\Delta v=v_f - v_i=0 - 10=- 10 \, \text{m/s}\)
Step3: Aplicar la fórmula de aceleración
La fórmula es \(a=\frac{\text{change in velocity}}{\text{time}}\), con \(t = 2 \, \text{s}\). Entonces \(a=\frac{-10}{2}=-5 \, \text{m/s}^2\)
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-5 m/s²