The invention of the cannon in the fourteenth century made the catapult unnecessary and ended the safety of castle walls. Stone walls were no match for balls shot from cannons. Suppose a cannonball of mass 5.00 kg is launched from a height of 1.10 m, at an angle of elevation of 30.0° with an initial velocity of 50.1 m/s, toward a castle wall of height 30.0 m and located 212 m away from the cannon.  The range of a projectile is defined as the horizontal distance traveled when the projectile returns to its original height. What will be the range reached by the projectile if it is not intercepted by the wall? m If the cannonball travels far enough to hit the wall, find the height at which it strikes. m

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Projectile Motion