Recent content by Very_Unwise

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    Hinged rod rotating, falling and hitting a mass

    Alright alright, thanks for the help :D
  2. V

    Hinged rod rotating, falling and hitting a mass

    Okay, so I(rod+snowball) should be Irod + Isnowball which is 1/3*M*L^2+ m*L^2 , m=1/9*M I(rod+snowall) = 1/3*M*L^2 + 1/9*M*L^2 = 4/9*M*L^2 Irod* ω1= I(rod+snowball)*ω2 1/3*M*L^2 * sqrt(3g/L) = 4/9*M*L^2*ω2 crossing out M*L^2 1/3*sqrt(3g/L)=4/9*ω2 ω2*4/3=sqrt(3g/L) ω2=sqrt(3g/L)*3/4
  3. V

    Hinged rod rotating, falling and hitting a mass

    Yes that's true, substituting g=9.81 does make things quite messy. Thank you
  4. V

    Hinged rod rotating, falling and hitting a mass

    Okay, so my previous calculations were wrong because the moment of inertia for the rod changes after collision? Meaning I(combined object) doesn't equal Irod? To find the new moment of inertia i have to find the new center of mass for the combined object, which is (0*1/9*M +1/2*L*M)/10/9*m...
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    Hinged rod rotating, falling and hitting a mass

    Okay, so instead of m*r*v=m*r*v ill use I*ω = m*r*v? Substituting v=ω*L gives me I*ω = m*L^2*ω That gives me i*ω = 10/9*M *L*v v=ω*L i*ω1 =10/9*M*L^2 * ω2 , i=1/3*M*L^2, ω1 = sqrt (29.43/L), I=Irod I rod*sqrt (29.43/L) = 10/9 *M*L^2*w solving for w using symbolab gives me w = (1.627*sqrt...
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    Hinged rod rotating, falling and hitting a mass

    Assuming no friction anywhere, no drag and perfect inelastic collision Using conservation of mechanical energy i can determine the rotational speed of the rod right before collision occurs. mgh=1/2*i*w^2 center of mass falls 1/2*L so we have: M*g*1/2*L = 1/2*(1/3*M*L^2)*w^2 Solving for w...
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