To find the speed of the lift in m/s, we can use the formula:
Speed = Distance / Time
In this case, the distance traveled by the lift is the height between Level 1 and Level 5, which is 10 meters per level, and the time taken is 20 seconds.
Let's calculate the speed:
Distance = 10 meters/level * 4 levels (from Level 1 to Level 5) = 40 meters
Time = 20 seconds
Speed = 40 meters / 20 seconds = 2 meters per second (m/s)
So, the speed of the lift is 2 meters per second.