Requirement is that at terminal velocity the rider

Assignment Help Mechanical Engineering

Reference no: EM13708964

We want to design a parachute. The requirement is that at terminal velocity the rider will have a velocity equal to the maximum velocity the rider would reach jumping to the ground from a 10-ft high roof. The rider weighs 150 lbf. The parachute will be circular and its drag coefficient Cd = 1.5. What diameter must the parachute have?

Reference no: EM13708964

Questions Cloud

Air undergoes a polytropic process in a piston cylinder : Air undergoes a polytropic process in a piston cylinder from p1=1bar, T1=295K to p2=7bar. The air is modeled as an ideal gas and kinetic and potential energy effects are negligible. For a polytropic exponent of 1.6, determine the work and heat transf..

Evaluated at the mean temperature in the slab : Prove that if k varies linearly with T in a slab, and if heat transfer is one-dimensional and steady, then q may be evaluated precisely using k evaluated at the mean temperature in the slab.

A volcano has erupted-spewing stones and steam : A volcano has erupted, spewing stones, steam, and ash several thousand feet into the atmosphere. After some time, the particles begin to settle to the ground. Consider a nearly spherical ash particle that is 50 microns in diameter, falling in air who..

Research the social and cultural aspects of the country : Research the social and cultural aspects of the country you have chosen, and discuss the demographic trends that might influence EDUS business activities in the country. Country Overview: Describe the country, its history and any pertinent inf..

Requirement is that at terminal velocity the rider : We want to design a parachute. The requirement is that at terminal velocity the rider will have a velocity equal to the maximum velocity the rider would reach jumping to the ground from a 10-ft high roof. The rider weighs 150 lbf. The parachute will ..

Temperature dependence of diffusion coefficient for carbon : A 1.00%wt Carbon steel (FCC or \gamma?Fe) axel must operate at 850C in an oxidizing environment where the carbon content at the surface of the steel is zero. Only the outermost 200 microns of the component can fall below 0.50%wt C.

Calculate the number of kilograms of hydrogen : The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate the number of kilograms of hydrogen that pass per hour through a 5.5-mm-thick sheet of palladium having an area of 0.84 m2 at 500°C.

Derive the equilibrium conditions for an isolated system : Derive the equilibrium conditions for an isolated system consisting of two regions separated by a membrane and with three components A, B, and C. The membrane is rigid, heat conducting, and only permeable to component A.

Greener grass company competes with its main rival : Greener Grass Company (GGC) competes with its main rival, Better Lawns and Gardens (BLG), in the supply and installation of in-ground lawn watering systems in the wealthy western suburbs of a major east-coast city. Last year, GGC's price for th..

User Account

All Pages