Concept explainers
Find the time needed to fall from 250 feet to 40 feet.
Answer to Problem 63SR
It takes about 3.6 seconds to complete the ride.
Explanation of Solution
Given:
A popular amusement park ride whisks riders to the top of a 250 − foot tower and drops them. A function for the height of a rider is
The ride stops the descent of the rider at 40 feet above ground, so
Then, the equation
Calculation:
The ride stops the descent of the rider at 40 feet above ground, so
Then, the equation
Time cannot be negative. So, it takes about 3.6 seconds to complete the ride.
Thus, it takes about 3.6 seconds to complete the ride.
Chapter 9 Solutions
Algebra 1
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