Complete the correlation: Straight steep staircase : Less mechanical advantage :: Spiral staircase : ___
Complete the correlation: Straight steep staircase : Less mechanical advantage :: Spiral staircase : ___
Greater mechanical advantage
Zero mechanical advantage
Equal effort to vertical jump
Class I lever
Solution
A spiral staircase gently winds upward over a longer distance, providing a gentler slope and therefore greater mechanical advantage than a short, steep straight staircase.