A cannon sits at the edge of a cliff at a height H above the ground and is fired at an angle 0 relative to the horizontal. A target sits a horizontal distance D away. The target can be hit by adjusting the muzzle speed, vo, to the appropriate value. O tauget (a) In terms of 0, D, and the unknown speed vo, find the time tr when the cannon ball will hit the target. (b) Using part (a), find the velocity vo needed to hit the target in terms of H, D, 0. (c) At what horizontal distance x does the cannon ball reach its maximum height?

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Projectile Motion