& i- A bus decreases its sped from 80 km / h to
60 km/h in 5 second find its acceleration
Answers
Answered by
1
Answer:
The acceleration of the bus that decreases its speed from 80 kilometers per hour to 60 km per hour in 5 seconds is -1.12m/s.
Answered by
2
Answer:
-1.11m/sec²
Step-by-step explanation:
v = 60km/h = 60(5/18) =50/3 m/s
u = 80km/h = 80(5/18) =200/9 m/s
t = 5sec
a = v-u/t
a = [50/3 - 200/9] / 5
a = [ (150 - 200)/9 ] / 5
a = [-50/9 ] / 5
a = -50/9(5)
a = -50/45
a = -10/9
a = -1.11m/sec²
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