Respostas

2014-06-17T15:01:34-03:00
Fr² = F1² + F2²
Fr² = 40² + 30²
Fr² = 1600 + 900
Fr² = 2500
Fr = Raiz de 2500
Fr = 50N

Fr = m * a
50 = 50 * a
50/50 = a
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a = 1m/s²
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