Rotational Motion: Kinematic Equations, Example Problems

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Күн бұрын

This video explains how to solve rotational kinematics physics problems. The rotational motion problems in this video include using the four kinematic equations to solve for angular velocity, angular acceleration and angular displacement.
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Chapters:
00:00 Rotational Kinematics
00:40 Introduction
3:20 Example No. 1
4:45 Example No. 2
7:20 Example No. 3
9:25 Example No. 4
11:55 Example No. 5
14:00 Example No. 6
15:40 Example No. 7
17:25 Example No. 8

Пікірлер: 30

@jamesthompson8636 2 жыл бұрын

In example 7, you used the diameter vice the radius (80 instead of 40)to calculate the linear acceleration. Easy fix; change text to radius of the wheel vice diameter.

@JoJo-tx2qn 2 жыл бұрын

Yes, diameter was the given unit's name. Answer for b.) should be half of his answer.

@exhaustedfire2446 10 ай бұрын

Hi Sir , in the timeline 16:40 timestamp , you interpreted the diameter as 0.8m not the radius , therefore the radius is 0.4m. When following the formula (linear acceleration = radius * angular acceleration) , you will attain an answer of 0.4m * 2rad/s^2 = 0.8m/s^2

@stepbystepscience 10 ай бұрын

Yes, you are right.

@srotosshini1467 2 жыл бұрын

Will we get more rotational motion videos?? I'm loving them!!

@stepbystepscience 2 жыл бұрын

I hope so! Are you looking for something in particular?

@srotosshini1467 2 жыл бұрын

@@stepbystepscience more complicated problems and new stuff if possible reagrding rotational motion. Actually I don't know much about it, but I'd love to learn more from your videos.

@courtneycloyd5110 2 жыл бұрын

These all seem to have much more given information than what my textbook gives. My textbook almost never gives time.

@stepbystepscience 2 жыл бұрын

Glad that you found this resource helpful. Thanks for your comment.

@onlyfacts5998 Жыл бұрын

Hello Sir you are incorrect in number 7. The linear acceleration shoul be 0.8m/s², you forgot to convert the cm to m the radius is 0.4 not 0.8, Thankyou for this lesson Sir you explain it very nicely❤️👌

@stepbystepscience Жыл бұрын

Yes, you are right. Thanks for letting me know.

@doctormoehtun9403 Жыл бұрын

Good and easily understanding.

@stepbystepscience Жыл бұрын

Glad it was helpful!

@aramish3037 Жыл бұрын

thank you for this!

@stepbystepscience Жыл бұрын

You're most welcome!

@osmanaltanyuksel1884 7 ай бұрын

14:58 Hello sir, in this problem in order to solve W final I used the kinematic formula: Wf^2 = Wi^2 +2.a.θ But I found Final angular velocity as Wf = 16.16 rad/sec, where you think I did wrong?

@AlikhanTorekhan-iz1bc 2 жыл бұрын

THANK YOU SO MUCH!

@stepbystepscience 2 жыл бұрын

You're most welcome!

@AlikhanTorekhan-iz1bc 2 жыл бұрын

@@stepbystepscience Heyyyyyyy Today i had my midterm exam from physics. Trust me, i was preparing hard and i was studying with your videos. I do not know much in physics and i have poor background. But i know that everything is possible and if you put into the work, then why not to try strive for success? So going back to my exam, i was studying with your videos and i really liked how u go over through questions cuz physics is better understood through questions and practices rather than just formulas. I just wanted to say that i just aced that exam. And what is more important, i had similar question to those you analysed in your other videos. So i remembered all the notes that you made and i am so grateful to you. I passed it easily😎Thank you from the bottom of my heart❤️❤️❤️❤️❤️❤️❤️❤️