Physics & the Devil’s Freeway
If you live in TUSTIN, chances are you have experienced the hellish commute of the 91 freeway at least once. I refer to this as the devil’s freeway because it lies, steals, and kills. As a Physics student you will be able to relate if you have ever gotten stuck in traffic during rush hour. The 91 freeway says that RIVERSIDE is only 30 miles away, but rather than taking 25 mins to get there, like it normally should, it takes us an hour. LIES! This ensnaring freeway also steals our valuable evening time that could be spent with family and friends, or getting help from a Physics TUTOR right out from under our noses. It lures us into its claws until it has us so far entangled we can’t get free. Can you relate? Worse still, the 91 freeway slowly sucks the lives out of us as we sit, and sit, and sit, breathing in fumes and thinking of all the better things we could be doing besides staring at tail lights. This is why I call it the devil’s freeway. Well, if we want to see how much time the devil’s freeway has taken from us, we can use PHYSICS.
In my opinion, PHYSICS is one of the most fun sciences because it is practical. You can see it working in everyday life. Take for instance, getting stuck in rush hour traffic on the 91 freeway. You can use a PHYSICS equation to figure out what your average speed is when traveling from TUSTIN to RIVERSIDE.
Distance traveled (Δx)/ Time elapsed (Δt)
The PHYSICS equation above states that the average speed you travel can be calculated by dividing the total distance traveled by the time it took you to get from point A to point B. Simple as that! So for example: If I was coming to TUTOR a Physics student in RIVERSIDE and it took me 60 mins to go 25 miles, my average speed could be calculated by changing the minutes into hours and plugging it into the equation above.
25mi/1hr = 25mph SO SLOW!
Now, let’s calculate how much time it would take me to get to RIVERSIDE if I were traveling a normal speed of 75mph to get there (It’s my way of revenge on the devil’s freeway to drive fast when I can). So if it is 25miles and my average speed is 75mph, I could plug it into the Physics equation above.
25mi/x = 75mph
Then cross multiply.
75x = 25mi
Then divide the 75 from both sides and solve.
75x/75 =25/75 » x = .333
Because there are 60 mins in one hour, I must multiply .333 by 60 to see how many minutes it would take me.
.333(60) = 19.98 » Approximately 20mins SO MUCH BETTER!
This is the amount of time it should take me to get there, but unfortunately that is not always the case. When I TUTOR PHYSICS to someone in TUSTIN or RIVERSIDE and I know that I will have to travel on the 91 freeway, I am sure to take a good audio book and music. Hope you do the same! But if you ever find yourself needing more reason to wallow in self-pity when you are in traffic, do what I do and use this PHYSICS equation to see how slow a pace you are averaging and let your family at home know so they may have sympathy on you and cook you dinner. www.APlusInHomeTutors.com