9702/43 q1
tf was that eclipse orbit 3 mark question ✌🏻😭💀
remember the question being ```by explaining forces, explain the variation of speed of the moon on an eclipse orbit around earth. (two As are labelled at two positions where the velocities are equal and opposite, and an B is labelled where speed is at maximum on a diagram). [3]```
and this is how i answered
```speed is maximum at B, decreases and reaches minimum at point opposite to B as it approaches the opposite point, and increases as it moves from the opposite point back to B.
this is because gravitational force between earth and moon is directly proportional to square of speed and inversely proportional to separation // also inversely proportional to square of separation, thus speed is inversely proportional to the square root of separation.
(basically just F∝v^2/r, F∝1/r^2 → v∝1/sqrt(r) but in words)
hence at B separation minimum, gravitational force maximum; separation increases and reaches maximum at opposite point, force decreases and reaches minimum at opposite point (because as the question said, by explaning forces), and the other way around as it moves from opposite point back to B.```
wondering how all those managed to fit on the lines given? because they didnt😭💀, as they exceeded the space allocated a lot (yet still remained in the boundaries of the page)
how much out of the 3 marks do yall think i could manage to get