The speed of the ball falling down into glycerol, varies with

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Uploaded: 25.06.2014
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122. The speed of the ball falling down into glycerol, varies with time as v = vo (1-e-t), where vo = 6.1 cm / s; a = 140 s-1. To determine the density of the ball, if known: 1) by t = 0,01 s after the beginning of the movement the force of viscous friction modulo 3 times the resultant of all the forces applied to the ball; 2) the density of glycerin is = 1,25103 kg / m3.

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Gulin "Problems in Physics" task 122

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