Question

you are driving a car with a speed of 40m/s and suddenly you saw a dead end, you started applying brakes of car with a declaration of 5m/s² what is the speed of the car 3seconds after you applied the break.​

Answer 1

Answer:

25m/s

Explanation:

acceleration = velocity/time

Answer 2

Answer:

25m/s

Explanation:

t=3sec

u=40m/s

a=-5m/s^2

v=?

from v = u+ at

v=40+(-5×3)

v=40-15

v=25m/s

hence, final velocity=25m/s