ANSWER:
-1. 1 m/s²
EXPLANATION:
Step 1: Given data
Initial velocity, u = 80km/h = 22.2m/s
Final velocity, v = 60km/h = 16.7m/s
Time, t = 5 sec
Step 2: Formula used
V = U + a × t
Where “a” is the acceleration.
Step 3: Determine the acceleration
Using the first equation of motion,
16.7 = 22.5 + a × 5
[tex]a = \frac{16.7 - 22.2}{5} [/tex]
a= -1. 1 m/s²
The value is negative as the bus is decelerating.
Hope it helps :)
