Calculating Horizontal Distance Traveled by a Thrown Ball

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Homework Help Overview

The problem involves calculating the horizontal distance traveled by a ball thrown horizontally from a height of 2.0 meters with an initial speed of 15 m/s. The context is within the subject area of projectile motion in physics.

Discussion Character

  • Exploratory, Mathematical reasoning, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the use of equations for horizontal and vertical motion, noting the need to determine the time of flight. There is a suggestion to consider the initial velocity in the context of the vertical motion equation.

Discussion Status

The discussion is ongoing, with participants providing guidance on how to approach the problem by breaking it into horizontal and vertical components. There is an emphasis on finding the time it takes for the ball to hit the ground before calculating the horizontal distance.

Contextual Notes

Participants note the absence of time in the original poster's attempt and the need to derive it from the vertical motion equations. The setup involves assumptions about the initial conditions of the throw.

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Homework Statement


a ball is thrown horizontally with a speed of 15m/s at a point 2.0m above the level ground. how far will it go before it hits the ground


Homework Equations


Dt = (Vi)(t) + (1/2)(a)(t^2)



The Attempt at a Solution



i think this is the formula to use, however, i don't have a time.
 
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Apply the eqn for horizontal and vertical components of motion. you'll get the time.
 
But you have another equation involving time, namely x = vxt.
 
So use the equation you gave to find the time it takes before it hits the ground (think carefully about what the initial velocity is that you should plug in) and then insert the time you found in neutrino's formula to find the horizontal distance.
 

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