Answer:
It will take 60 hours to pass your area
Step-by-step explanation:
From the question we are told that
The the distance of wispy cirrus clouds is
![d_w =6km = 6*10^3 m](https://img.qammunity.org/2021/formulas/physics/college/ztxng6dsijokg4kotrug3i1f6kt17q8c14.png)
The slope is given as
![S = 1:300 = (1)/(300)](https://img.qammunity.org/2021/formulas/physics/college/cvtsza9qe7ea9updfwpg126myhoa4nmde9.png)
The speed is
![v = 40km/hour](https://img.qammunity.org/2021/formulas/physics/college/4ks1l2991auic7jpwqyjnyt4xyj2jvymm4.png)
Since the slope is 1:300 which indicates the change in the distance of the wispy cirrus clouds overhead to the distance of the warm front
Now if
1 km → 300 km
Then
→ x km
Cross multiplying and making x the subject
![x = 8 *300 = 2400 \ km](https://img.qammunity.org/2021/formulas/physics/college/mkpowdryfyyukogz5ft4jf2mrmu5bt83q1.png)
Velocity is mathematically denoted as
![velocity(v) = (Distance(d) )/(Time(t) )](https://img.qammunity.org/2021/formulas/physics/college/7yakheoyu1v3je43519ckvvmn8y03ajzgd.png)
Now making time the subject
![Time (t) = (Distance )/(Velocity)](https://img.qammunity.org/2021/formulas/physics/college/htvje3h6bankewg37oj8wbt8u2835ifatz.png)
Now substituting values we have
![t =(2400)/(40)](https://img.qammunity.org/2021/formulas/physics/college/4eny1auaa6f4fxaa6vv8y88qu2key20fwx.png)
![= 60\ hours](https://img.qammunity.org/2021/formulas/physics/college/wlv4kxy0hkka7j41b5wxi4c7y6n0j1iy74.png)