Question

FISICA
Uma bola pensando 100 N é mostrada suspensa por um sistema de cordas. Quais são as tensões nas cordas? R. 83,90 N e 130,54 N

Answer 1

$\\\\\text{Para T2:}\\\\\\\\sen50=\dfrac{100}{T2}\\\\\\\\T_{2}=\dfrac{100}{sen50}\\\\\\\\T_{2}=\boxed{130,54N}\\\\\\\\\text{Agora para T1:}\\\\\\\\cos50=\dfrac{T_{1}}{130,54}\\\\\\\\T_{1}=130,54\cdot cos50\\\\\\\\\boxed{T_{1}=83,9N}$


Basta formar triângulos retângulos.


Espero ter Ajudado!