Added: 3 years ago
From: PhysicsEH
Views: 11,164
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  • looooooooooooooooool

  • Thank you!! This really helped me to understand my teacher does not explain it as well as you did.

  • thank you for putting up these helpful vids. you are a god!!!!!!!!!!!!

  • haha bindi spot again

  • THHHHAAAANKKKK YYYOOOOUUU!!!!

    i finally got

  • thanks sir =) can you replace my physics teacher? =))))

  • what happens if i don't know Fa?

  • @DreadedLeopard You would need to be given something else then because you can only be missing one variable or you can't solve for anything. The formula for the x and y direction would still be the same so you would plug in what you know and solve for what you don't. I hope this helps.

  • Thank you so much. this has helped me a lot! Im from malaysia.

  • @mrssyasya Hello from Canada. Thanks for letting us know the videos helped.

  • @mrHIGHonLIFEman Hi. Thanks for the very nice comments.

  • nice!

    Thanks

  • ahh it hurts

  • on time 4:42 why did you divide Fx-Ff/(20kg)?

  • @hypeblast Just above the part on the board where we did that, you will see written Fx - Ff=ma So if you substitute numbers for each variable you get 34 - 10 = 20a (We skipped that step) When you rearrange this to bring the 20 over to the other side by dividing both sides by 20 you get (34 - 10)/20 = a

    So the 20 was the mass and it needed to be brought over to the other side to solve for "a" I hope this helps, let me know if you need more clarification.

  • @PhysicsEH yea thanks buddy i notice that ma was mass* acceleration and the mass was 20 kg..

    im going to ask you a question on your next following video ..

  • @PhysicsEH Could you show me step by step?

  • @PhysicsEH hey i dont understand how Ff is 10? why is that?

  • on time 4:42 why did you divide by Fx-Ff/(2)

  • Physics rules

  • Ummm.... I wanna go back to living environment lol

  • yo man nice video. the acceleration which i got is 1.73m/s^2. its a lot different when u take g as 9.8 and 40 cos30 as 34.6

  • Fg is calculated as Fg = mg. We used g = 10 instead of 9.8 so you get Fg = 200 kg X 10 N/kg = 200N.

    Hope that helps.

  • how did Fg become 200N?

  • haha, 20times square root of 3 is 7... violate rules of math and physics!

  • AHAHAHAHA!!!!!!

  • thanks a lot.i wish you were my ap physic teacher. good job.

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