Force Equations
In
the above equations: v is velocity in
m/s, v0
is initial velocity in m/s, a is
acceleration in m/s2, t is
time in s, Δx and Δy are the change in
position in m, F is the force in J, m is
the mass in g, g is the acceleration of
gravity (9.8 m/s2), ρ is the
fluid density in kh/m3, CD is
the drag coefficient in N, and A is the
cross sectional area in m3.
The
ballistic
coefficient determines how well a
projectile can overcome
air resistance
or drag. It is calculated as a ratio
comparing the performance of the ammunition
to a standard projectile. The higher the
ballistic coefficient, the better that the
ammunition is at resisting drag and wind
deflection. Usually, the longer the bullets
are, the higher the ballistic coefficient.