14 Study of a recording The recording of the movement of the center of inertia of a mobile on a cushion table da. horizontal gave the following result (full size). The time r between two pointers is gp ms. 20
a) Is the mobile pseudo-isolated? b) Determine and represent the velocity vectors respectively at points G, G2, G3 and c) Determine the acceleration vectors respectively at G, and G. Compare these two d) Determine the direction and direction of the resulting force exerted on the cellphone. e) Is this force constant? To justify. accelerations.
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