Find the damping coefficient

Assignment Help Mechanical Engineering
Reference no: EM13704724

A 90 kg pilot ejects from a plane and reaches a steady state velocity of 30 m/s with one parachute open. Neglect any air drag force on the pilot and assume that the air drag force can be modeled as an ideal damper i.e. linearly proportional to the velocity.

A) Find the damping coefficient

An identical second parachute opens after the pilot has already reached the steady state.

B) if the 2nd parachute opens at t=0, determine the ODE describing the pilot's velocity including initial conditions.

C) Obtain the differential equation describing the force acting on the pilot.

Reference no: EM13704724

Questions Cloud

At the exit from the first stage nozzles the steam velocity : At the exit from the first stage nozzles the steam velocity is 244 m/s, specific volume 0.0686 m3 /kg, mean diameter 762 mm and steam angle 76o measured from the axial direction. Determine the nozzle height of this stage.
Determine the rate of steam flow : A 20 MW back-pressure steam turbine receives steam at stagnation pressure of 4 MPa and stagnation temperature of 300oC, exhausting from the last stage at stagnation pressure of 0.35 MPa. The turbine isentropic efficiency is 0.884, and mechanical loss..
Determine the initial temperature of the h2o : Rigid steel tank with a volume of 1 m3 contains 2 kg of H2O initially at 400 kPa. Determine the initial temperature of the H2O
Determine the initial temperature : A frictionless piston-cylinder contains 3.0 kg of H2O and is initially at 300 kPa. The initial volume is 1.0 m3. The water is heated until the temperature is 300 C. If the volume within the system reaches 1.5 m3, the piston hits a set of stops and is..
Find the damping coefficient : A 90 kg pilot ejects from a plane and reaches a steady state velocity of 30 m/s with one parachute open. Neglect any air drag force on the pilot and assume that the air drag force can be modeled as an ideal damper i.e. linearly proportional to the ve..
Closed systems-control volume systems-transient systems : Explain whether the following situations and should be modeled as closed systems, control volume systems, or transient systems. Convert the following temperatures to °F, °C, K, R (4 pts) a. 98.6 °F b. 298 K c. 5715 °F e. 100 °C. Convert the following..
A piston-cylinder device initially contains : A piston-cylinder device initially contains 0.4 m3 of air at 100 kPa and 80°C.The air is now compressed to 0.1 m3 in such a way that the temperature inside the cylinder remains constant. Determine the work done during this process.
Atomic radius and atomic weight of niobium : Atomic radius and atomic weight of niobium are 0.143nm and 92.91 g/mol respectively. Calculate Nb density assuming (1) FCC, and (b) BCC crystal structures. Compare the values with t the available Nb density from the textbook (Materials Science and En..
Calculate the static pressure of moving mass of air : Calculate the static pressure (in psi) of a moving mass of air, if the ambient air pressure is 1 atms (14.69 psi) and the velocity of the moving mass of air is 100 feet/sec.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Package design

Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.

  Mechanical engineering questions

Define dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate.

  Automatic control

DOF system and Find the differential equation describing the system

  Write a paper on boyle''s law

Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.

  Verify the law for parallelogram of forces

To Verify the law for parallelogram of forces, law for triangle of forces and law of polygon of forces. These laws are very useful to calculate unknown forces in very short time.

  Discharge pressure of the compressor

What is the discharge revised discharge pressure of the compressor.

  The Case for Global Accounting Standards

The role of IFRS in both developing and developed capital markets.

  Wind turbine

Wind turbines are becoming more and more common as a method of energy production, wind turbines by their very nature are dynamic and are subject to and create their own internal and external kinematics and kinetics.

  Advanced design methodologies

8 x product engineering and design review (week 2 – 12), ~3 pages per item which must contain a brief description of the product then delve into concepts such as materials selection, manufacturing methods, life cycle analysis, recyclability and overa..

  Design of absorption column and the cooler

Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.

  Determine the maximum total bending moment

Determine maximum total bending moment (static plus dynamic) of the beam under steady-state conditions.

  Force of the water on the gate

Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd