The elevators in the landmark Tower and Yokohama Japan, are among the fastest in the world they accelerate upward at 3.125 (m/s^2) for 4.0 seconds to reach their final velocity. If these elevators start from rest, what is their final speed
To find the final speed of the elevator, we need to first calculate the acceleration that the elevator undergoes and then use that acceleration to find the final speed.
Given:
Initial velocity (u) = 0 (Starting from rest)
Acceleration (a) = 3.125 m/s^2
Time (t) = 4.0 seconds
We can use the formula of motion to find the final velocity (v):
v = u + at
Plugging in the values:
v = 0 + 3.125 * 4.0
v = 12.5 m/s
Therefore, the final speed of the elevators is 12.5 m/s.