Aroller coaster starts at rest from a height of 110m, and accelerates down the track to a height of 10m. find the speed it can reach, assuming no friction.

The final velocity of the roller coaster is 44.3 m/s

Explanation:

To calculate the final velocity of the roller coaster, we use third equation of motion:

where,

s = distance traveled = 110 - 10 = 100 m

u = initial velocity of the roller coaster = 0 m/s

v = final velocity of the roller coaster = ? m/s

a = acceleration due to gravity =

Putting values in above equation, we get:

Hence, the final velocity of the roller coaster is 44.3 m/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.