Question

always use significant figure rules. remember that these rules apply to all numbers that are measurements. when a car screeches to a sudden stop to avoid hitting a dog. it slows down from 9.00 m/s to 0.00 m/s in 1.50 s. find the average acceleration of the car.

Explanation:

Step1: Identificar los valores iniciales y finales

$v_i = 9.00\ m/s$, $v_f = 0.00\ m/s$, $t = 1.50\ s$

Step2: Aplicar la fórmula de aceleración media

La fórmula de aceleración media es $a=\frac{v_f - v_i}{t}$. Sustituyendo los valores: $a=\frac{0.00 - 9.00}{1.50}$

Step3: Realizar el cálculo

$a=\frac{- 9.00}{1.50}=-6.00\ m/s^2$

Answer:

$-6.00\ m/s^2$