A boy kicks a ball horizontally over the edge of a cliff with a speed of \(6ms^{-1}\) as shown in the diagram. The ball hits the surface of the water \(3s\) later. (a) Calculate the vertical speed of ...
When creating presentation materials, web pages, etc., it is convenient to have a diagram that summarizes the contents in an easy-to-understand manner. There are many tools for creating diagrams, some ...
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