On Jul 7, 3:22 pm, Jim Kelley wrote:
Art Unwin wrote:
On Jul 3, 5:16 pm, Art Unwin wrote:
You know John, since America gives the 'right to bear arms' you would
think that the population would understand
that a projectile must have rotation to follow a straight line
trajectory.

Hi Art,

The American Constitution does not "give" rights. It simply attempts
to prevent government from eliminating them.

Under the influence of gravity, sub-orbital ballistic projectiles
generally follow a parabolic trajectory. Isssac Newton's laws of
motion apply without caveat.

ac6xg

It followsa straight line trajectory in two dimensions out of three
The weak force othewise known as the magnetic field of the eddy
current
overcpmes or neutralises gravity while applying spin such gravitation
has little or no
effect on the trajectory as it is projected with spin. This can be
seen with
elevation experiments