# Hiking the Pacific Crest Trail: Sheryl Strayed begins the day at 500 m above sea level, at the...

## Question:

Hiking the Pacific Crest Trail: Sheryl Strayed begins the day at 500 m above sea level, at the base of a mountain pass. She hikes 20 km at an angle of 10 degrees from horizontal up to the top of the pass in 5 hours. She then descends at an angle of 7 degrees for 10 km for the next 3 hours before stopping for the day.

(a) At the end of the day, what is her final height above sea level?

(b) For the day's hike, what is her average horizontal velocity?

## Height and Distance Problem:

Calculating Velocity and height from the Given problem statement.

## Answer and Explanation:

a)

for the first part

Strayed begins the day at 500 m above sea level,

She hikes 20 km = 20000m at an angle {eq}10^o {/eq} from horizontal and She...

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from Prentice Hall Pre-Algebra: Online Textbook Help

Chapter 11 / Lesson 8