Zipline Problems? (see 17-second video) If you said yes, you’re right(!) It was preventable—and the reasons I go deeper than slack or operator error as an expert witness. What was missed is a failure of lateral clearance, something explicitly covered under the ACCT/ANSI Design, Performance, and Inspection Standards. In technical terms, every zipline requires what’s called an activity corridor or clearance envelope—a three-dimensional safety space around the rider’s path that accounts for all pos

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Angle of Elevation A zip-line steel cable is being constructed for a reality television competition show. The high end of the zip-line is attached to the top of a 50 -foot pole while the lower end is anchored at ground level to a stake 50 feet from the base of the pole. (a) Find the angle of elevation of the zip-line. (b) Find the number of feet of steel cable needed for the zip-line. (c) A contestant takes 6 seconds to reach the ground from the top of the zip-line. At what rate is the contestan