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11-111.

A projectile travels through the air with position and where is horizontal displacement and is height above the ground where both are measured in meters and is in seconds. Homework Help ✎

  1. When does the projectile hit the ground?

    When does ?

  2. How far does the projectile travel during its trip through the air? That is, calculate the length of the path of the projectile.

  3. What is the maximum height of the projectile?

    This is when .

  4. What are the acceleration and velocity vectors of the projectile at time seconds?