00:01
So we essentially have four quantities here, quantities of speed, force, impulse, and momentum, which i'll just abbreviate as p for short.
00:19
So speed is defined as essentially the magnitude of the components of the vectors, the vector components of velocity.
00:30
And essentially with speed, you only have a magnitude only.
00:34
So it's a scalar quantity, and hence is not a vector quantity.
00:42
So speed, force is essentially defined as mass times acceleration.
00:48
Acceleration essentially is also a vector quantity.
00:52
Mass is just a proportionality constant, so acceleration, hence a certain mass is just multiplying it by a certain constants...