Question

A bus decreass it's speed from 80 kmh-1 to 50 km /h in 4 sec . find the acceleration of the bus.

Answer 1

Answer:

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Answer 2

Given v = 50 kmh‐¹

= 50 × 5/ 18 = 125 /9 ms‐¹.

u= 80kmh‐¹ = 80 ×5/18 = 200/ 9 ms‐¹.

t = 4s .

• using the expression ⸻➤v=u+at, we have....

• a = v-u/ t

• = 125-200/9×4

• = -2.083 ms‐².

Hope it helps you