Arace car is traveling at 76 m/s when it slows down at 9 m/s^2 for 4 seconds. what is his new velocity

40m/s

Explanation:

Parameters.

Speed = 76m/s

Acceleration = 9m/s2

Time = 4seconds

We know that velocity (V1) = V2 + at

Where V1 is the final velocity, V2 is Initial velocity, a is acceleration but in this case it’s decceleration meaning the value will be negative and t is the time taken.

Therefore, V1 = V2 + a t

V1 = 76m/s + (-9m/s2) (4s)

V1 = 40m/s

Therefore the new final velocity is 40m/s

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.