Question

A esfera mostrada na figura tem peso P = 100 N. Despre- zando os atritos, determine as intensidades da tração T no
fio ideal e da força N que a parede aplica na esfera.

ME AJUDEM PFV​

Answer 1

$cos\theta = \frac{P}{T}\\\\T = \frac{P}{cos\theta}\\\\T = \frac{800}{cos30\degree}\\\\T = \frac{800}{\frac{\sqrt3}{3}}\\\\T = 800 \cdot \frac{3}{\sqrt3}\\\\T = \frac{2400}{\sqrt3}\\\\T = \frac{2400\sqrt3}{3}\\\\\boxed{T = 800\sqrt3N}$