73. A ball of mass m1 = 16 g, moving horizontally, ran with the ball mass m2 = 0,8 kg, hanging on a direct non-deformable and weightless rod of length l = 1,7 m. Assuming an elastic blow, determine the velocity of the ball υ1, if the deflection angle rod after hitting α = 20 °.
Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)
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