Aroller coaster is traveling at 13 m/s when it approaches a hill that is 400 m long. heading down the hill, it accelerates at 4.0 m/s2. what is the final velocity of the roller coaster? round your answer to the nearest whole number.

The final velocity of the roller coaster is 58.04

Explanation:

Kinematics of the problem:

The The roller coaster  moves with uniform accelerated movement moves with uniform accelerated movement, then, We use the acceleration equation for this type of movement:

  Formula 1

: final speed

: initial speed=

d=distance traveled by The roller coaster  =400m

Final velocity calculating:

We replace known information in the formula 1:

vf2=3369

The final velocity of the roller coaster is