Question

how long does it take to accelerate a car from a speed of 36km/hr to 72 km/ hr at an acceleration of 0.4 m/s ²​

Answer 1

Explanation:

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Answer 2

Answer:

time = 25 s

Explanation:

given ,

u=36 km/h ⇒ 10 m/s

v= 72 km/h ⇒ 20 m/s

a=0.4 m/s²

since a=v-u/t

 0.4=20-10/t

4/10=10/t

4t=100

t=25seconds