A small airplane flying horizontally with a speed of 191 mi/hr at an altitude of 370 ft above a remote valley drops an emergencymedical package at A. The package has a parachute which deploys at B and allows the package to descend vertically at the constantrate of 5.5 ft/sec. If the drop is designed so that the package is to reach the ground 43 seconds after release at A, determine thehorizontal lead L so that the package hits the target. Neglect atmospheric resistance from A to B.BTarget-191 mi/hr370' Part 1Calculate the time t₁ at which the parachute opens.BTarget-Answer: t₁ = isec191 mi/hrA370'

Answered: Image /qna-images/answer/9f152bc6-73d6-43ff-946e-609977193e24.jpg

Answered: B. Target- L 191 mi/hr A 370'

Engineering

Mechanical Engineering

B. Target- L 191 mi/hr A 370'

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A small airplane flying horizontally with a speed of 191 mi/hr at an altitude of 370 ft above a remote valley drops an emergency
medical package at A. The package has a parachute which deploys at B and allows the package to descend vertically at the constant
rate of 5.5 ft/sec. If the drop is designed so that the package is to reach the ground 43 seconds after release at A, determine the
horizontal lead L so that the package hits the target. Neglect atmospheric resistance from A to B.
B
Target-
191 mi/hr
370'

Part 1
Calculate the time t₁ at which the parachute opens.
B
Target-
Answer: t₁ = i
sec
191 mi/hr
A
370'

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