A driver of a car traveling at 25 m/s applies the brake, causing a uniform acceleration of -3 m/s2. A) How long does it take the

Question

AnnZ [28]

3 years ago

15

A driver of a car traveling at 25 m/s applies the brake, causing a uniform acceleration of -3 m/s2. A) How long does it take the

car to accelerate to a final speed of 20 m/s? B) How far has the car moved during the braking period?

Physics

1 answer:

IrinaVladis [17] · Answer 1 · 2022-11-19T16:44:02+03:00

IrinaVladis [17]3 years ago

8 0

T= final velocity- initial velocity/ acceleration
T= 20m/s - 25 m/s / -3m/s^2
T= -5/ -3
T= 1.67 s
Therefore, it takes the car 1.67s to accelerate to a final speed of 20m/s.