Question

An airplane increases its speed at the average rate of 15 m/s². How much time does it take to increase its speed from 100 m/s to 180 m/s? A) 17 s B) 0.058 s C) 5.3 s D) 0.25 s​

Answer 1

C - 5.3s

Step-by-step explanation:

a = v - u / t

so,

t = v - u / a

t = 180 - 100 / 15

t = 5.3s