# Average torque on a projectile of mass 𝑚, initial speed 𝑢 and angles of projection θ, between initial and final position 𝑃 and 𝑄 as shown in figure about the point of projection is

Question: Average torque on a projectile of mass 𝑚, initial speed 𝑢 and angles of projection θ, between initial and final position 𝑃 and 𝑄 as shown in figure about the point of projection is

(A) $mu^{2}\sin \theta$

(B) $mu^{2}\cos \theta$

(C) $\dfrac{1}{2}mu^{2}\sin 2\theta$

(D) $\dfrac{1}{2}mu^{2}\cos 2\theta$