posted by Iklishi .
Sau-Lan has a mass of 47 kg. She rides the up escalator at Ocean Park in Hong Kong. This is the world's longest escalator, with a length of 227 m and an average inclination of 31°. How much work does the escalator do on Sau-Lan?
M*g*227*sin 31 = 53,850 Joules
227sin31 is the elevation change.