Answer:
a = 3.088 m/s²
Step-by-step explanation:
u = - 27.7 m/s
v = - 10.9 m/s
s = - 105 m
By using the formula, s = 1/2 (u + v)t
-105 = 1/2 (-27.7-10.9)t
-105 = 1/2 (-38.6)t
-105 = - 19.3t
-105/-19.3 = t
t = 5.44s
a = (v - u)/t
a = (-10.9 - (-27.7))/ 5.44
a = 16.8/5.44
a = 3.088 m/s²
