A projectile is thrown with a speed \( \mathrm{v} \) at an angle \(...

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A projectile is thrown with a speed \( \mathrm{v} \) at an angle \( \theta \) with the vertical. Its average velocity between the instants
\( \mathrm{P} \) it crosses half the maximum height is

W.
(1) \( \vee \sin \theta \), horizontal and in the plane of projection
(2) \( v \cos \theta \), horizontal and in the plane of projection
(3) \( 2 v \sin \theta \), horizontal and perpendicular to the plane of projection
(4) \( 2 \mathrm{v} \cos \theta \), vertical and in the plane of projection.
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