Respostas

2013-07-09T20:26:45-03:00
Vx = V * Cos(teta)

Vx = 40V3 * Cos 30°

Vx = 40V3 * V3/2

Vx = 40 * (V3)² / 2

Vx = 40 * 3 / 2

Vx = 20 * 3

Vx = 60m/s
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