Solving for Ball Collision: A vs. B Atop a Building

AI Thread Summary
The discussion centers on a physics problem involving two balls: Ball A, dropped from a building, and Ball B, thrown upward from the ground. The key point is that when they collide, Ball A is moving four times faster than Ball B. Participants suggest using kinematic equations to analyze the motion and determine the height at which the collision occurs. The conversation emphasizes the importance of showing work to facilitate assistance in solving the problem. Understanding the paths and speeds of both balls is crucial for finding the solution.
kidia
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Does anyone can help me on this please?
Ball A is dropped from the top of building at the same instant the ball B is thrown vertically upward from the ground.When the balls collide,they are moving in the same direction,and the speed of A is 4 times that of B.At what fraction of the height of the building does collision occurs?
I will appreciate.
 
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So, where did you get stuck? Please show us your working so we can help you.
 
Think of ways to express the paths of both balls. Maybe a kinematic equation could help or perhaps the useful K.E. equation... K.E. = \frac{1}{2}mv^2

That should get you started.

Jameson
 

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