Recent content by Mzaa

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    Statics problem -- Rectangular plate lying on two inclined surfaces

    I recently searched for definition of "line of action of force",but I still confuse.Are they the line passing through A and B and they're pararelled?
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    Statics problem -- Rectangular plate lying on two inclined surfaces

    Homework Statement https://www.img.in.th/image/VNaqVa https://www.img.in.th/image/VNa3k9 This is my home work. Homework EquationsThe Attempt at a Solution I have a problem with the force at A and B. I don't know how to use NA NB in the term of α and β to use moment calculation. I got that...
  3. M

    What is the solution to question 2 on energy conservation problems homework?

    Thank you so much! I really forget to use parabola equation. This is really helpful.
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    What is the solution to question 2 on energy conservation problems homework?

    Homework Statement https://www.img.in.th/image/VNYMHY https://www.img.in.th/image/VNYKDv This is my homework,but I have a problems with question no.2 Homework EquationsThe Attempt at a Solution I tried to used energy conservation rule to get that the speed is √2gh ,but I don't know how to know...