Question

NEED HELP!! WILL GIVE BRAINIEST!! When a driver presses the brake pedal, his car can stop with an acceleration of -5.4 meters per second squared. how far will the car travel while coming to a complete stop if its initial speed was 25 meters per second?

Answer 1

Answer:

d = 57.87 m

Explanation:

It is given that,

Acceleration of car due to applied brake is $-5.4\ m/s^2$

Its initial speed was 25 m/s

Its final speed was 0 as its comes to rest.

Leat d is the distance covered by the car. It can be calculated using third equation of kinematics as :

$v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{0^2-(25)^2}{2\times (-5.4)}\\\\d=57.87\ m$

So, the distance covered by the car is 57.87 m.

Answer 2

Answer:

d = 57.87 m

Explanation:  have a nice day :)