A post needs to be driven into the ground by a mechanical hammer to facilitate some of the operations carried out in the manufacture of some engine parts. The distance it is driven by the first blow is 11 cm. Each subsequent blow drives the post 90% of the distance of the proceeding blow. If each blow takes 10 seconds how long will it take to drive the post at least 75cm into the ground What is the maximum distance the post can be driven into the ground?

Mathematics For Machine Technology
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ISBN:9781337798310
Author:Peterson, John.
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Chapter64: Volumes Of Spheres And Composite Solid Figures
Section: Chapter Questions
Problem 23A: A seamless brass tube and brass flange assembly is shown. The tube is pressed fit into the full...
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A post needs to be driven into the ground by a mechanical hammer to facilitate some of the operations carried out in the manufacture of some engine parts. The distance it is driven by the first blow is 11 cm. Each subsequent blow drives the post 90% of the distance of the proceeding blow.

  1. If each blow takes 10 seconds how long will it take to drive the post at least 75cm into the ground
  2. What is the maximum distance the post can be driven into the ground?
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