What was the initial velocity of the ball?

AI Thread Summary
To determine the initial velocity of a ball thrown horizontally from a 25.0 m high cliff, it is essential to recognize that it will take the same time to hit the ground as a ball dropped from the same height. The horizontal distance traveled by the ball is 45.0 m, which can be used alongside the time of flight to calculate the initial velocity. The time to fall can be calculated using the kinematic equation for vertical motion, and the initial velocity can then be derived from the horizontal motion equation. The speed of the ball upon impact can also be determined by combining its horizontal and vertical velocities at that moment. Understanding these principles of kinematics is crucial for solving projectile motion problems effectively.
statefanchris
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the question: Someone throws a ball horizontally from the top of a 25.0 m high cliff and the ball lands 45.0 m from the base of the cliff

A) What was the initial velocity of the ball?
B) What was its speed wen it hit the ground?

I don't need complete work just a beginning please.
 
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Use the kinematics equations to solve the problem. If its starting from rest what's the initial velocity?
 
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A ball thrown horizontally will reach the ground in the same amount of time as a ball that was simply dropped from the same height.

There is an animation here: (as well as an explanation)
http://math.cankaya.edu.tr/index/hedef/proje2004_2005Bahar/TolgaGUL/Tolga03.html"
 
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drpizza said:
A ball thrown horizontally will reach the ground in the same amount of time as a ball that was simply dropped from the same height.

There is an animation here: (as well as an explanation)
http://math.cankaya.edu.tr/index/hedef/proje2004_2005Bahar/TolgaGUL/Tolga03.html"


Its not exactly the same but its so close that its negligable.
 
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