Recent content by Nasa123123

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    Analytic solution of the Earth's orbit around the Sun

    The exercise is to compare numerical and analytical solution. I have worked out the code from earlier exercise (see code under this text), but I don't understand how the analytical solution works. I have tried to use the equation r(theta) = a(1-e^2)/(1+e*cos(theta)), which is OK but I don't...
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    Velocity of an object with varying mass

    Yes, the raindrops are falling vertically from the sky with no impact from wind or other forces.
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    Velocity of an object with varying mass

    There are no external forces working on the box.
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    Velocity of an object with varying mass

    I have tried several things but I am a little uncertain if I’m thinking right so a little hint goes a long way. I think I have to use the law of conservation of momentum as the collision between the raindrops and the box is inelastic. But I am unsure how to set up the equation.