Kay is a 50kg pole vaulter with a standing center of mass of 1.0m. During the approach to her first vault she is able to run at a velocity 9.0m/s just before putting the pole to the ground but was unsuccessful at clearing the height of 5.5m.How much kinetic energy does Kay have just before putting the pole to the ground? How much kinetic energy must Kay have to be able to achieve her goal height of 5.5m? How fast must Kay run to be able to achieve her goal height?

Given, Kay is a mass m = 50 kg pole vaulter with a standing centre of mass of y=1.0m. During the…

Answered: Kay is a 50kg pole vaulter with a…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 108CP: Consider a linear spring, as in Figure 7.7(a), with mass M uniformly distributed along its length....

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Kay is a 50kg pole vaulter with a standing center of mass of 1.0m. During the approach to her first vault she is able to run at a velocity 9.0m/s just before putting the pole to the ground but was unsuccessful at clearing the height of 5.5m.

How much kinetic energy does Kay have just before putting the pole to the ground?
How much kinetic energy must Kay have to be able to achieve her goal height of 5.5m?
How fast must Kay run to be able to achieve her goal height?

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