An engineer is trying to determine the mass of a student who will barely touch the water when jumping off a bridge shown with an ideal bungee cord with a spring constant of 18N/m. The height of the bridge and natural length of the bungee cord are shown. Neglect drag, energy gained from the jump and loss due to impact with the water. 49m How much would the cord's length change in order to touch the water? m v List the energy types at the initial and final time and whether work and loss (due to non- 125m conservative forces) occur as well as the corresponding amounts of energy. initial: GPE unit work? no work v = unit v reference level loss? no loss unit final: EPE unit What mass student would barely touch the water? kg v Would a student with a mass of 31kg hit the water? no
An engineer is trying to determine the mass of a student who will barely touch the water when jumping off a bridge shown with an ideal bungee cord with a spring constant of 18N/m. The height of the bridge and natural length of the bungee cord are shown. Neglect drag, energy gained from the jump and loss due to impact with the water. 49m How much would the cord's length change in order to touch the water? m v List the energy types at the initial and final time and whether work and loss (due to non- 125m conservative forces) occur as well as the corresponding amounts of energy. initial: GPE unit work? no work v = unit v reference level loss? no loss unit final: EPE unit What mass student would barely touch the water? kg v Would a student with a mass of 31kg hit the water? no
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 73AP: A mysterious force acts on all particles along a particular line and always points towards a...
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