larissamathiasolivei 20/06/2014 0 graus Fr = F1 + F2 Fr = 20N60 graus Fr = √F1²+F2²+2.F1.F2.cosα Fr = √100+100+2×10×10×0,5 Fr = √300 = 17,32 N90 graus Fr = √F1²+f2² Fr = √10²+10² Fr = √200 = 14,14N120 graus Fr = √100+100+2.10.10.(-0,50) Fr = √200 - 100 Fr = 10 N180 graus Fr = F2 - F1 Fr = 10-10 Fr = 0 N
larissamathiasolivei
0 graus Fr = F1 + F2
Fr = 20N
60 graus Fr = √F1²+F2²+2.F1.F2.cosα
Fr = √100+100+2×10×10×0,5
Fr = √300 = 17,32 N
90 graus Fr = √F1²+f2²
Fr = √10²+10²
Fr = √200 = 14,14N
120 graus Fr = √100+100+2.10.10.(-0,50)
Fr = √200 - 100
Fr = 10 N
180 graus Fr = F2 - F1
Fr = 10-10
Fr = 0 N