Answer:
-4.167m/s, 81.2385m
Explanation:
initial velocity=120km/hr = 33.33m/s
final velocity=75km/hr = 20.83 m/s
t=3s
Acceleration=v-u/t
a=(20.83-33.33)/3
a=-12.5/3
a=-4.167
Therefore, the acceleration is -4.167 m/s^2
s=ut+1/2at^2
33.33*3+1/2*-4.167*3^2
81.2385 m
