Subject: Re: question about terminology
OK. Bilk and all you other sci-neologist on the Saturday scene...
you can't pass this one up.
The scalar of acceleration =
1) Sq-eed or Sqarvel ?
2) Prejerk or P'jerk ?
3) ??
Summarising in a table:
Vector Scalar
symbol name symbol name
d displacement |d| distance
v velocity |v| speed
a acceleration |a| ?!
Harry
Stephen A. Lawrence wrote:
leaking pen wrote:
good point. i keep forgeting, velocity has a vector in it.
in which
case, i dont know that its possible to have a scalar meaning
for
acceleration. by definition its the change of a vector.
about the
only way i can think of would be to call it the change in
speed, and
even thats innacurate.
v = (v_x, v_y, v_z)
or, using coordinate numbers instead of axis names,
v = (v_0, v_1, v_2)
and the magnitude of that is:
speed = |v| = sqrt(v*v) = sqrt(sum((v_i)^2)), sum from 0 to 2
Change in velocity per time:
a = dv/dt = (a_0, a_1, a_2) = (dv_0/dt, dv_1/dt, dv_2/dt)
And the magnitude of that is:
|a| = sqrt(a*a) = sqrt(sum((a_i)^2)), sum from 0 to 2
But I don't know any nice names for |a|.
