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projectile about the origin in the following situations: Hint: For A, B, and C calculate the position vector in x and y coordinates as a function of the angle 0and the initial velocity vi. Write the velocity vectors also in their x and y components. Please, review chapter 4 on projectile motion. The range and maximum altitude achieved in a projectile motion are calculated as: R=\frac{v_{0}^{2} \sin 2 \theta}{g} \quad h_{\max }=\frac{\left(v_{0} \sin \theta\right)^{2}}{2 g} A. When the projectile is at the origin. B. When it is at the highest point of its trajectory. C. Just before it hits the ground. D. What torque causes its angular momentum to change?

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