An automobile manufacturer claims that its product will, starting from rest, travel 400 m in 9.0 s. What is the acceleration required to do this?

Acceleration, a = 9.877m/s²

Explanation:

Given the following data;

Distance, d = 400m

Time, t = 9secs

Since it's starting from rest, initial velocity, u = 0

To solve for acceleration, we would use the second equation of motion;

Substituting into the values into the equation;

Cross multiplying, we have;

a = 9.877m/s²

Therefore, the automobile would have to accelerate at a constant rate of 9.877m/s²

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.

force tends to be low and long diustance masses are high