Question

Pfvr eu preciso disso ainda hj

Answer 1

A° R=f1+f2=8+6=14N

B° R=f1+(-f2)=8-6=2N

C° R=f1+f2-f3=8+6-24=14-24=-10N

D° R2=8+6

R2=64+36

R2=100

R=V100=10

E° R2=V1+V2+2.v1.v2cos

R2=8+8+2.8.8.(-0,5)

R2=64+64+2.64.-0,5

R2=128-64=64

R2=64

R=V64=8