Recent content by renobueno4153

  1. renobueno4153

    I Conservation of angular momentum in the iceskater example

    Thank you guys for all the explanations. I think I see it a bit better now. But I still dont see one thing. I think i can see it that the math says that the angular velocity has to increase if the moment of inertia is reduced. But I fail to makes sense if I try to visualize why and where the...
  2. renobueno4153

    I Conservation of angular momentum in the iceskater example

    Today in my physics lecture we looked at the conservation of angular momentum. I dont understand the iceskater example: If an iceskater pulls their limbs together while they are spinning, they speed up. At first I thought I understand the math behind it but the more I think about the math the...
  3. renobueno4153

    Struggling to make relation between elastic force and height

    its in the first picture. all the way to the right. :)
  4. renobueno4153

    Struggling to make relation between elastic force and height

    Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how...
  5. renobueno4153

    Trying to understand the logic behind adding vectors with an angle between them

    Wait but why do I know the 500km/h and 800km/h are their magnitude and not their vector components?
  6. renobueno4153

    Trying to understand the logic behind adding vectors with an angle between them

    Ohhh I think I see where was confused. I think it was my mathematical reasoning was flawed and that was reason i didnt understand it!
  7. renobueno4153

    Trying to understand the logic behind adding vectors with an angle between them

    My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should...
  8. renobueno4153

    I Is calling fictitious forces "not real" just about terminology?

    Thx to all of you guys! Much appreciated!
  9. renobueno4153

    I Is calling fictitious forces "not real" just about terminology?

    HOLY SMOKES THATS SICK. Ok this video hooked me so much that I watched the whole 20min. So I can see now that fictitious forces are depended on the reference frame. But do we have an explanation where that change in motion comes from? To be precise: We use fictitious forces to explain how the...
  10. renobueno4153

    I Is calling fictitious forces "not real" just about terminology?

    Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when...