Resposta :
a)
Angulo descrito: 135-45=90 graus = PI / 2 rad
b)
[tex]v_a=\frac{\frac{\pi}{2}}{6}= \frac{\pi}{12} \ \ rad[/tex]
a) 135° - 45° = 90°
180° ----- Pi
90° ----- Pi / 2
b) ω = ΔΘ / Δt
ω = ( Pi / 2) / 6
ω = Pi / 12