(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

BlimpWork A blimp of mass 100 kg is pulled at an angle [tex]\phi[/tex] = 27[tex]^{o}[/tex] downwards with respect to the horizontal for d = 10 km on level ground at a constant velocity v = 12 m/s. If the coefficient of drag (K in F = Kv^2) is 0.5 kg • m, how much work in Joules is done by the puller?

2. Relevant equations

W=Force * Distance

3. The attempt at a solution

This is an example I found and the work they show is:

Force = Kv^2 = 0.5 kg/meter • (12 meters/second)^2

Distance = 10 km

0.5 kg/meter • (12 meters/second)^2 • 10 km= 720000 J

and obviously the last part doesn't multiply correctly. Is this problem worked incorrectly or am I missing something? I am trying to do a similar problem but, I get the wrong answer when I emulate the above... If the example is wrong how do you work the problem? If not, what am I missing? Also, what about cos [tex]\theta[/tex]?

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# Homework Help: Blimp Work Problem

Can you offer guidance or do you also need help?

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