A car is traveling at 20 meters/second and is brought to rest by applying brakes over a period of 4 seconds. What is its average

Question

3 years ago

13

acceleration over this time interval?

2 answers:

frez [133] · Answer 1 · 2022-02-27T23:36:36+03:00

frez [133]3 years ago

8 0

(u) = 20 m/s
(v) = 0 m/s
 (t) = 4 s

0 = 20 + a(4)

4 x a = -20

so, the answer is -5 m/s^2. or -5 meter per second

Feliz [49] · Answer 2 · 2022-02-28T01:21:28+03:00

Feliz [49]3 years ago

8 0

The answer is -5 m/s^2. or -5 meter per second