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S92(3) - Name Physics 4A Posting Code Spring 1992 FINAL...

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Name:__________________________________________ Posting Code: _____ _____ _____ Physics 4A FINAL EXAM - "Take Me Out to the Ball Game" Spring 1992 Solve the following problems in the space provided. Use the back of the page if needed. Each problem is worth 10 points. You must show your work in a logical fashion starting with the correctly applied physical principles which are on the last page. Your score will be maximized if your work is easy to follow because partial credit will be awarded. 1. The pitcher throws a pitch from the mound toward home plate 18.4m away. The ball is released horizontally from a height of 2.00m with a velocity of 40.0m/s. Find (a)the time it takes for the ball to reach home plate and (b)the height above the ground when it gets there. 2. An 85.0kg baserunner tries to steal second base. When he is 3.00m from the base he begins his slide at a speed of 9.00m/s. He comes to rest just as he touches the base. Find the coefficient of friction between the sliding baserunner and the ground.

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3. A 150g baseball starts at rest and rolls down the 50.0cm high pitcher's mound.
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S92(3) - Name Physics 4A Posting Code Spring 1992 FINAL...

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