Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
What is the range advantage of the defenders over the attackers, i.e. the width of the zone where the defenders can hit the attackers, but the attackers cannot yet hit the defenders?

What is the range advantage of the defenders over the attackers, i.e. the width of the zone where the defenders can hit the attackers, but the attackers cannot yet hit the defenders?

International Edition---engineering Mechanics: Statics, 4th Edition
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter9: Moments And Products Of Inertia Of Areas
Section: Chapter Questions
Problem 9.16P: Figure (a) shows the cross-sectional dimensions for the structural steel section known as C1020...
See similar textbooks
icon
Related questions
Question
What is the range advantage of the defenders over the attackers, i.e. the width of the zone where the defenders can hit the attackers, but the attackers cannot yet hit the defenders?
Setup. A historical Vauban bastion fortification features a horizontal-top hill of height H=15 meters. Viewed in a vertical cross-section perpendicular to its face, the hill slopes down from the parapet at 70 degrees from the horizontal, towards a horizontal moat of length a=30 meters, which terminates at an escarpment of height h=6 meters above the moat. The outer perimeter starts from the top of the escarpment and continues outward horizontally. The inspiration example is the Jaca citadel in Spain (see aerial photo below). A diagram of the setup is provided below. A group of young modern enthusiasts is using the historical fortification for recreation. Their gas cannons hurl small pumpkins at 30 m/s initial velocity. These cannons can be elevated up to 30 degrees and depressed down to -10 degrees. The defending artillery is stationed at the parapet of the bastion, i.e. at the top edge of the hill. You can ignore air resistance. Assume all firing is done perpendicular to the face of the bastion (i.e. in the plane of the diagram below).
Transcribed Image Text:Setup. A historical Vauban bastion fortification features a horizontal-top hill of height H=15 meters. Viewed in a vertical cross-section perpendicular to its face, the hill slopes down from the parapet at 70 degrees from the horizontal, towards a horizontal moat of length a=30 meters, which terminates at an escarpment of height h=6 meters above the moat. The outer perimeter starts from the top of the escarpment and continues outward horizontally. The inspiration example is the Jaca citadel in Spain (see aerial photo below). A diagram of the setup is provided below. A group of young modern enthusiasts is using the historical fortification for recreation. Their gas cannons hurl small pumpkins at 30 m/s initial velocity. These cannons can be elevated up to 30 degrees and depressed down to -10 degrees. The defending artillery is stationed at the parapet of the bastion, i.e. at the top edge of the hill. You can ignore air resistance. Assume all firing is done perpendicular to the face of the bastion (i.e. in the plane of the diagram below).
parapet H=15m 70° moat a=30m escarpment outer perimeter |h=6m
Transcribed Image Text:parapet H=15m 70° moat a=30m escarpment outer perimeter |h=6m
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Moment of Inertia
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
International Edition---engineering Mechanics: St…
International Edition---engineering Mechanics: St…
Mechanical Engineering
ISBN:
9781305501607
Author:
Andrew Pytel And Jaan Kiusalaas
Publisher:
CENGAGE L
SEE MORE TEXTBOOKS