Question: As soldiers get bigger and packs get heavier, a parachutist and load can weigh as much as 400 lbf. The standard 28-ft parachute may descend

As soldiers get bigger and packs get heavier, a parachutist and load can weigh as much as 400 lbf. The standard 28-ft parachute may descend too fast for safety. For heavier loads, the U.S. Army Natick Center has developed a 28-ft, higher drag, less porous XT-11 parachute (see the URL www.natick.army.mil). This parachute has a sea-level descent speed of 16 ft/s with a 400-lbf load.
(a) What is the drag coefficient of the XT-11?
(b) How fast would the standard chute descend at sea-level with such a load?

Step by Step Solution

★★★★★

3.47 Rating (147 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

For sealevel air take 000237 slugft3 a Everything is known exce... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

E-ME-FM (845).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

Reactants A and B combine to form product P in the vapor phase reaction: A + B P But a side reaction also occurs, forming by-product U: 2A U The Gibbs free energy and enthalpy of each compound at T...

A balloon weighing 3.5 lbf is 6 ft in diameter. If filled with hydrogen at 18 psia and 60°F and released, at what U.S. standard altitude will it be neutral? D-6 ft W 3.5 lbf Hydrogen, 18 psi. 60F...

A falling sky diver reaches terminal speed with her parachute closed. After the parachute is opened, what parameters change to decrease this terminal speed?

Safety researchers in a government agency believe that too much variability in the speeds of vehicles on urban sections of interstate highways can contribute to accidents by causing a greater level...

Required information As soldiers get bigger and packs get heavier, a parachutist and load can weigh as much as 400lbf. The standard 28 - tt parachute may descend too fast for safety. For heavier...

YOU CAN GROW YOUR BRAIN New Research Shows the Brain Can Be Developed Like a Muscle Many people think of the brain as a mystery. We don't often think about what intelligence is or how it works. And...

Q2. How are Tesla's management resources and organizational capabilities different in the electric vehicle market compared to existing other automakers? And how does it(Tesla's management resources...

Discussion Questions for Crystal View Incorporated Case:(45points)Write-up for Crystal View Inc.should be turned in by the end of October 8(11:59 pm, Oct 8).This is a group exercise. Consider the...

THE TESTS OF A LEADER | BEST OF HBR 1995 | Editor's Note: Guiding change may be the ultimate test of a leader - no business survives over the long term if it can't reinvent itself. But, human nature...

Case: Whirlpool Corporation Global Procurement. . Consider the following questions for discussion: 1. Analyze the data for Plastic Injection Molding to identify cost drivers. Develop a basic,...

case study listed below: Expert Q&A D + Whirlpool Corporate Global Procurement Case Study: Please help to answer this question. Thinking of the range of services a company might source from outside...

QUESTION 1 Motor Gucci Plc is a company that manufactures a novel type of cars for the Asian and South Pacific regions. The company has two Divisions, the Engine Division and Assembly Division. The...

Consider a cogeneration power plant modified with regeneration. Steam enters the turbine at 7 MPa, 440oC at a rate of 20 kg/s and expands to a pressure of 0.4 MPa. At this pressure 60% of the steam...

If 8 x g ( x ) 4 x ^ 4 4 x ^ 2 + 8 for all x , evaluate lim x 1 g ( x ) .

Suppose that you are planning for retirement. You are 26 and plan to retire when you are 70, 44 years from now. Your investment goal (based on the 3-legged retirement model) is to gain $5 million at...

Your company is considering changing the terms of its credit from net 30 to 2/15/net 30. Currently the price per unit (P) is $49.98. With the new credit policy, the price (P') will be increased to...

Required: 1. Please provide a determination and distribution schedule. 2. Make all of the necessary elimination entries. 3. Using T-accounts, calculate the income for both Parent and Subsidiary and...

A researcher is testing a hypothesis of a single mean. The critical z value for = .05 and an one tailed test is 1.645. The observed z value from sample data is 1.13. The decision made by the...

Use a spreadsheet and construct curves for the following titrations. Calculate potentials after the addition of 10.00, 25.00, 49.00, 49.90, 50.00, 50.10, 51.00, and 60.00 mL of the reagent. Where...

25. Translate the following into standard-form categorical propositions. Berlin was the setting for the 1936 Olympic Games.

The Butler-Perkins Company (BPC) must decide between two mutually exclusive projects. Each project has an initial after-tax cash outflow of $6,750 and has an expected life of 3 years. Annual project...

Quantitative Problem: Lane Industries is considering three independent projects, each of which requires a $2 million investment. The estimated internal rate of return (IRR) and cost of capital for...

question 12-1 Which one of the following items about Theory of Constraints is TRUE? Select one: a. Operating processes close to their capacity can result in low customer satisfaction and even losing...