# Serway 13-66b

1. Homework Statement
A 60.kg firefighter slides down a pole while a constant frictional force of 300N retards his motion. A horizontal 20.0kg platform is supported by a spring at the bottom of the pole to cushion the fall. The firefghter stars from rest 5.00m above the platform, and the spring constant is 2500N/m. Find the maxiumum distance the spring is compressed.

2. Attempt at solution
I did this multiple times, and hte method that made most sense to me was to find difference in work, energy after loss, and the speed just before hitting the platform, THEN to use momentum to calculate the speed of both the person and the board. Using that, find the max compression of the spring.. There are 5 choices of answers

a. 0.25m
b. 2.15m
c. 1.14m
d. 47 m
e. 105m

I'm pretty sure I've doen something wrong. Any help will be gladly appreciated

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