Question

How much is the plane's acceleration while breaking if it takes 15 s for its velocity

is changing from 145 m/s to 75m/s?
A. 4.67 m/s
B. 3.4 m/s
C. 45 m/s
D. 23 m/s

Answer 1

A. 4.67 m/s²

Explanation:

u = 145 m/s

v = 75 m/s

t = 15 s

a = v - u / t

= 145 - 75 / 15

= 4.67 m/s²

Hope this helped...