A man (Adam) stands on the top of a buidling (425 m) and fights his brother (Dan) using a massive hammer. If his hammer has a mass equal to (4.5*1015 kg), what is the gravitation potential energy (in J) of the hammer, relative to the ground? (Use scientific notation to enter your answer: 1.23E12 means 1.23 * 1012) Dan tricks Adam into dropping the hammer off the building. When the hammer has fallen one third of the way down the tower, what is its kinetic energy (in J) (Hint: you could find the speed, then calculate the kinetic energy, but there’s an easier way…) and How fast (in m/s) will the hammer be traveling just before it strikes the ground?

A man (Adam) stands on the top of a buidling (425 m) and fights his brother (Dan) using a massive hammer. If his hammer has a mass equal to (4.51015 kg), what is the gravitation potential energy (in J) of the hammer, relative to the ground? (Use scientific notation to enter your answer: 1.23E12 means 1.23 1012) Dan tricks Adam into dropping the hammer off the building. When the hammer has fallen one third of the way down the tower, what is its kinetic energy (in J) (Hint: you could find the speed, then calculate the kinetic energy, but there’s an easier way…) and How fast (in m/s) will the hammer be traveling just before it strikes the ground?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter39: Relativity

Section: Chapter Questions

Problem 32PQ

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