Function Festival 2000-1
An Escalator At The St. Louis Galleria
Constant Speed = r = t/d
where t is
the total time and d is the total distance.
[ r = d/t ] 1. If you timed the trip on this escalator then use your time. Another investigator timed the ride from the theater level comb to the ground floor comb at t = 20.8 seconds.
Your average time is t = ___________ seconds for five trips.
[ r = d/t ] 2. If the distance each escalator tread travels from comb to comb is d = 34.67 feet as pictured below, calculate the approximate rate of motion of a point on a tread:
r = d/t = _____________ feet per second.
Related Concepts:
Function Notation
Y Rate
X Rate
Slope
Linear Functions
Related Rate Equations
Linear Motion
History of d = r t
Other FUNctions
The Story Board