Answer:
Acceleration of the car is [tex]-5\frac{m}{s^2}[/tex].
Explanation:
From the formula for acceleration: [tex]\bar{a} = \frac{v-v_0}{t}[/tex]:
[tex]v = 10 \;m/s[/tex] , [tex]v_0 = 30 \; m/s[/tex], and [tex]t = 5 \; s[/tex]
Substituting the values onto the formula, we get:
[tex]\bar{a} = \frac{10m/s \; - \; 30m/s}{4 \; s} = -5\frac{m}{s^2}[/tex]
