Thanks in advance for reading this thread. Here goes the question;(adsbygoogle = window.adsbygoogle || []).push({});

Q: A firefighter climbs up a 10.0m ladder leaning against a vertical wall.

The ladder makes an angle of 25.0 degrees with the wall. The firefighter reaches

the roof in 15.0s

a) What is the height of the wall? 9.10m

b) How far is the base of the ladder from the wall? 4.23m

c) What is the firefighter'saverage vertical velocity?

I have completed a) & b) as those were straight-forward questions by using Trig.

However, I got stuck on c). I understand that the average vertical velocity is

[tex]\Delta[/tex]d/t, t would be 15.0s but I'm not sure what the value of the d would be.

Could anybody please direct me or give me some advice?

Thank you

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# Homework Help: Average vertical velocity

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