Trajectory of a ball thrown vertically

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A student throws a ball vertically upward at a speed of 11.0 m/s from a height of 1.50 m. To determine how long the ball is in the air before it hits the ground, one must consider the effects of gravity on the ball's trajectory. The relationship between height and time for an object in free fall is crucial for solving this problem. Participants in the discussion express uncertainty about how to approach the calculations needed. Understanding the physics of motion under gravity is essential for finding the solution.
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A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 11.0 m/s when the hand is 1.50 m above the ground.
How long is the ball in the air before it hits the ground? (The student moves her hand out of the way.)
 
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Describe what you have done so far to solve the problem.
 
sorry this is bommer. had to change my s/n
i don't know where to start on this problem
 
What do you know about the relationship between height and time for an object moving under the influence of gravity?
 

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