The XREP projectile is fin stabilized, and travels at an initial velocity of 100 m / s ( 300 ft / s ).
32.
The geodesic equation is second order, and hence requires an initial coordinate and an initial velocity, for whatever geodesic we wish to calculate.
33.
From that you should be able to solve for the initial velocity and time after firing ( 2 equations with 2 unknowns ).
34.
We could pick the initial velocity direction to be pointing inwards from the boundary, into the problem space, and perpendicular to the boundary surface.
35.
A particle traveling at any reasonable initial velocity approaches its terminal velocity exponentially with an " e "-folding time equal to the relaxation time:
36.
This method for producing closed orbits does not violate Bertrand's theorem, because the added inverse-cubic force depends on the initial velocity of the particle.
37.
:Depends on ( i ) your initial velocity and ( ii ) the effect of air resistance ( unless this can be neglected ).
38.
I suspect this would depend on their initial velocities . . . . Sounds like this would make a good text book calculus question.
39.
We realized that one of the advantages to our core technology was we can soften the core without seeing a decrease in initial velocity rates,
40.
If the cannon fires its ball with a low initial velocity, the trajectory of the ball curves downward and hits the ground ( A ).
