A Basic Acceleration Example Problem and Understanding Acceleration Direction

This video starts with a simple acceleration problem and then addresses a commonly held misconception that a negative acceleration always means you are slowing down. I do this by way of examples. Kate (my wife) drove the Prius with a camera suction cupped to the window and videoed me riding my bike several times. In the end I ended up with four different examples on the screen at once and 25 different video layers to describe it all. I am really proud about how well it worked. Enjoy.

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Introduction to Acceleration with Prius Brake Slamming Example Problem

0:00 Intro
0:26 Reading the problem
0:40 Seeing the problem
1:14 Translating the words to Physics
1:54 Solving the problem
3:50 Why is the number on the bike positive?
4:48 How can the bike be speeding up if the acceleration is negative?
5:50 Comparing velocity and acceleration directions
7:28 All four bike examples on the screen at the same time
7:53 Why isn't there a direction on our answer?
8:51 Outtakes or how the bike riding was filmed

#Acceleration #Direction #Bike

[alitabrizi]

I love visual real life examples, it makes everything a lot easier for me to understand

[JoeSenkins]

11 years later and this video explains it perfectly. I cannot understate how much it helped me understand it.

[blackmamba]

I must admit, this 9 minute video is a lot better than my college professor's hour long lecture on the same topic...

[FlippingPhysics]

I must also admit, your comment makes me both happy and sad at the same time.

[ranjitn]

Hey, I was searching for videos explaining directions of velocity and acceleration and I found this. I am really really so glad I did. This video is awesome, you have put a lot of effort into this with real life example and interactive questioning and really good explanation. I cannot believe that all this was 8 years ago and I am quite surprised that this video or your channel hasn't grown much. Your channel is seriously underrated and you have earned a new sub. Thank you from the bottom of my heart.

[splatitup]

Thank you so much! I was struggling with this concept in my textbook. The bike example helped me alot. It was a good visual

[akashdesai]

you put a lot of effort into this great job man

[juanguio]

Mr. P, I’m blown away by your ability to think ahead.
“yeah, I guess we should talk about that, it is in the title of the video.”
Genius.
And when Bobby moves out from behind the bike shot at 5:54
That was probably really simple to do, but you did it well and I’m blown away by it. Lol.

[halamutaz]

Your video was so helpful and enjoyable, I liked how you dressed yourself into three different characters!

[WeAreShowboat]

These are really well done and very watchable. Good job, keep making these!

[Capesoda]

an amazing able bodied educator going to such lengths to explain a usually complicated concept in a short video for everyone to enjoy

[simplekaka]

Thank you so much for this video! I was able to get a 100% on my quiz thanks to this. I really appreciate your clear examples and were able to answer all the questions I had! Thanks again❤❤

[joanyoon]

Thank you so much for the illustration. Hope all is okay for you and your family during this ongoing pandemic. I will remember to share this video with my students!

[tamarleigh]

Thank you so much for these wonderful videos!! I will absolutely be recommending your channel to my students. You’re so much fun, I imagine your students really look forward to your class. I remember my eighth grade science teacher was funny and entertaining in this same way, and even 40 years later I remember that class fondly. I’m sure you will be remembered by your students all their lives, and I hope I’m even half as good at teaching as you are. 🏆🙌💖👩‍🏫

[melissavelez]

You clarified this so well for me. Very cool the kids get to learn early on.

[rohansathishkumar]

I SIMPLY CANNOT THANK YOU ENOUGH FOR THESE

[rakibulhasan-yvfr]

You are great. Still, I just imagine this, Video was uploaded 8 years ago but the style of narration is pretty. Seems like new and I really salute your effort to record of each video.



Thank you so much and Take love from Bangladesh🇧🇩🇧🇩🇧🇩

[sidra]

It's like u have worked bloody hard for your students, thank u so much n lots of love from India.🥰🥰🥰🥰

[sibesss]

This explanation worths millions of dollars 😭😭

[gracekotolo]

this is so so so helpful you have no idea! appreciate the time and effort you put into this <3