Statics Door hinges phy12-stat1b

[@ariannasuen4061]

So messy but so clever… I had no idea that we could just move the centre of mass as we see fit; what a great application for graphical vector addition. Thank you!!

[@theaizere]

this is so unbelievably straightforward, you explanation is superb!

[@mikelaraa]

Must have been the messiest diagram and calculation I've ever seen but also the most helpful one. Thank you mate, you just passed me my first sem

[@GrimacesGameNuggets]

I'm just in my third week of undergraduate studies in Physics & Engineering, and this video helped me to a huge extent in understanding torques in statics. Thank you so much!

[@theaizere]

how is life going?

[@GrimacesGameNuggets]

@@theaizere great. And it's all thanks to this video 😂

[@theaizere]

@@GrimacesGameNuggets lmao changed the trajectory of whole life fr but genuinely that's wonderful to hear, happy for you man!

[@shabirkabiri9648]

Thank you so much, I crushed my physics homework by watching this video.

[@CssniperAus]

Thanks, You simplified what my high school teacher failed to explain even after multiple examples... Now time for uni physics.

[@mackerel8040]

When high school physics videos have better quality than college professors’ in-class lessons

[@xiBobzHD]

Thanks for the video, really helpful for me to understand statics better.

[@antonbashkin6706]

This is great thank you!

[@zahernasserkarahasan1003]

Does the two hinges have the reaction vertical force? Or the magnitude is different?

[@julietadarino5713]

Thank you so muchh ily

[@gianlucatempesta6596]

How calculate the force for opening the door considering also the friction on the hinges?

[@adkhamjonkhamidullayev8008]

thank you this was really helpful

[@oscartigwell]

Thanks, this was really helpful!

[@oscarelastic]

is it possible to generate Shear force diagram and bending moment diagram?

[@terminate5888]

be careful.. moving the center of mass will effect the reaction forces at both points

[@suugondeez]

no

[@GrimacesGameNuggets]

Yep. I linked this video in Wattle.

[@AizhanToregozhina]

Thanks!!!very helpful!

[@nagabuzz]

How is the vertical forces Fay and Fby = 1/2mg? . I think we are over-constraining the system and either of hinge can take load mg. Please feed back

[@misterark]

it's stated in the question

[@talausese9311]

how were you able to say that one of the forces in the x direction was negative when they are both pointed in the same direction

[@cdw1323]

Hopefully you figured this out by now, but for others, it just means the initial assumption for the direction of the reaction force Fx_A vector is incorrect and should be reversed (which makes sense because it should resist the weight of the door)

[@oscartigwell]

You must be a detective.

[@larrytepa6427]

0.9 /2 = 0.45m not 0.4m.. if you round it off.. it equals.. 0.5m