A sky diver jumps from a helicopter and is falling straight

Assignment Help Mechanical Engineering
Reference no: EM13627872

A sky diver jumps from a helicopter and is falling straight down at 30 m/s when his parachute opens. From then on, his downward acceleration is approximately
a = g - cv2 , where g = 9.81 m/s2 and c is a constant. After an initial "transient" period, he descends at a nearly constant velocity of 5 m/s.
a. What is the value of c, and what are its SI units?
b. What maximum deceleration is the sky diver subjected to?
c. What is his downward velocity whe he has fallen 2m from the point at which his parachute opens?

Reference no: EM13627872

Questions Cloud

The need arises in a laboratory for 2000cm3 of an : the need arises in a laboratory for 2000cm3 of an antifreeze consisting of a 30 mole-percent solution methanol in
When alternate optimal solutions exist in an lp problem : when alternate optimal solutions exist in an lp problem thenthe problem will also be unboundedthe problem will also be
Sums and linear combinations of normal random variables are : sums and linear combinations of normal random variables are also normally distuributed. suppose w x and y are
A linear program has been solved and sensitivity analysis : a linear program has been solved and sensitivity analysis has been performed. the ranges for the objective function
A sky diver jumps from a helicopter and is falling straight : a sky diver jumps from a helicopter and is falling straight down at 30 ms when his parachute opens. from then on his
What was the net work w in j done on the rock during the : at a particular instant a rock is flying with velocity 5i-4j4k ms relative to the ground. here i j and k are unit
Cell biology explain how facilitated diffusion presents : explain how facilitated diffusion presents similarities with enzymatic chemical reactions. ltbrgtqn2 how does the
The refrigerant leaves the tube at 100 kpa and 20 degree c : refrigerant r-134a enters a 1 cm constant diameter tube at 400 kpa and 30 degree c. the refrigerant leaves the tube at
What is the direction of current through the smaller loop : two circular loops are centered on the x-axis parallel to the yz-plane. the smaller loop is stationary with radius r

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Using a unifrom mesh size deltax deltay determine the

consider steady two dimensional heat transfer in a square cross section 3cm x 3cm with the prescribed temperatures at

  Determine the change in the rate at which the following

pressurized water pin 10 bar tin 110 deg c enters the bottom of an l 10-m-long vertical tube of diameter d 100 mm

  Find perpendicular distance from the vertex p

A triangular field with vertices OPQ has sides OP equal 402 m, PQ equal 388 m, and QO equal 254 m . find perpendicular distance from the vertex P to the opposite side.

  Derive the material index for a light flywheel

Roll out a sheet of blu-tack, punch out a disk with your specified radius, assemble a flywheel for testing on an electric drill and determine the approximate critical rotation speed in rpm - SEM212 T1 2014

  A biomass fired furnace has an output of 6300 kw it burns

a biomass fired furnace has an output of 6300 kw. it burns biomass that has a heating value of 8100 btulb. at what rate

  In gantry crane there are are two motors one for horizontal

in gantry crane there are are two motors one for horizontal motion i.e. 400kg weight is to be moved 6m with

  The diameter of the hollow core of a solid-propellant grain

the diameter of the hollow core of a solid-propellant grain remains axially uniform during burning. the length is 5 m

  What is the formation volume factor of the oil

The separator produces 43,150 scf/d of 0.724 gravity gas, and the stock tank vents 7240 scf/d of 1.333 gravity gas. What is the formation volume factor of the oil? What is the solution gas-oil ratio? Which of the previous answers applies only at t..

  Air enters a steady-flow compressor with a specific

air enters a steady-flow compressor with a specific enthalpy of 293.4 kjkg and a velocity of 60ms and leaves with a

  Assuming that potential and jinetic energy contributions to

2000 kgh of steam drives a turbine that delivers 75 kw of shaft work. superheated steam at 5 bar enetrs the turbine at

  What is discharge revised discharge pressure of compressor

What is the discharge revised discharge pressure (guage pressure) of the compressor ?  Is the assumption of change in temperature valid for calculating the discharge pressure of the compressor ?

  Projection welding

Name products that are manufactured using these processes and write two sentences on why you know it's made from this process.

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