contents:
Engl
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Here:
![]() Having stopped in a point ![]() ![]()
As is known, the geometrical point, radius-vector r which refers to as the center of mass of material system is defined by equality
As for the working period to a body
where After substitution
let's receive: Projections of speeds to corresponding axes of coordinates:
or, after simplification:
In a projection to axes of coordinates
system XOY a
linear momentum
According to a principle of conservation of momentum of the closed system:
The decision of the given system of the
differential equations concerning coordinates
yields following results:
, where:
In a Fig. 4 the plot of change of coordinates
is presented Fig. 4 Once again we shall remind, that
values
With coordinate
Moving of the center of mass of all system of bodies looks like (Fig. 5): Fig. 5
Dependence of moving of the center of mass of all closed system are presented in a Fig. 6 and a Fig. 7. Fig. 6 Fig. 7 Two plots presented on Fig.4 and Fig 5, collected in one plot: Red color designates a trajectory of moving of the center of mass of all system, dark blue - moving of the case (Mc).
Conclusions. At observance condition of preservation of a momentum the given system ( Fig. 1) moves for the certain time interval on the certain distance ( Fig. 5).
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