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

Answer: option: (C)

Solution:

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