Figure 5.4. Trajectory of motion of the end of the rod in the receiving cone. The law of reflection of the material point in impact with an obstacle is a special case of formula (5.11). 5.23. Other Special Cases For the central impact of two bodies the formula for has the f orm and the equation of deformation also has a very simple form and is used to rate the longitudinal shock absorbers for central impact. The deformation of the angular shock absorbers for small angles, for example, for rotations of the rod of the docking mechanism, may be reduced to a linear displacement, and is equal to where is the modulus of the radius vector of the point of interaction relative to the center of rotation of the rod; deformations are directed along the normal to the axes of rotation and the vector r. The transverse force is defined by the momentum of the angular shock absorber with a characteristic $*) according to the formula .
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