Lecture
Material transfer vector
points over time from i.e. increment of the radius vector of a point over the considered period of time
(1.4) |
In the case of rectilinear motion, the displacement vector coincides with the corresponding part of the trajectory. From the fact that displacement is a vector, the law of independence of motions that is confirmed by experience follows: if a material point participates in several movements, then the resulting displacement of a point is equal to the vector sum of its displacements, which it accomplishes separately in each of the movements.
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Physical foundations of mechanics
Terms: Physical foundations of mechanics