Question

a bus decreases its speed from 32km/h to 18km/h in 5 sec .Calculate acceleration?

Answer 1

⭐️ ⭐️ ⭐️ ⭐️ ANSWER ⭐️ ⭐️ ⭐️ ⭐️

$<marquee> GIVEN DATAS OR INFORMATIONS </marquee>$

◆ u = 32 km/h = 8.9 m/s
◆ v = 18 km/h = 5 m/s
◆ t = 5 s

Therefore, acceleration
= {(5-8.9)/5} m/s²
= -3.9/5 m/s²
= - 0.78 m/s² (retardation)


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Answer 2

Given informations are :-

✌ u = 32 km/h = 8.9 m/s
✌ v = 18 km/h = 5 m/s
✌ t = 5 s

Therefore, acceleration 
= {(5-8.9)/5} m/s²
= -3.9/5 m/s²
= - 0.78 m/s² (retardation)


[ Retardation is often termed as negative acceleration. ]