Question

Determine the drag coefficient of a 75kg skydiver with a projected area of 0.33m^2 and a...

Determine the drag coefficient of a 75kg skydiver with a projected area of 0.33m^2 and a terminal velocity of 60 m/s. Air density at the skydiver's altitude is 0.932 kg/m^3.

Homework Answers

Answer #1

Hey there!

The drag force can be given with

Fd = 1/2 ρ v2 A cd

where

Fd = drag force (N)

cd = drag coefficient

ρ = density of fluid (0.932 kg/m3)

v = terminal velocity (60 m/s)

A = projected area (0.33 m2)

Hence the drag coefficient Cdis

(The value of Fd is taken as "mg" since the acceleration value is not specifically mentioned here for the drag)

Hence

  is the drag Coefficient

I hope the solution helps... Feel free to comment and discuss further.... Cheers :)

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A skydiver with mass m = 50.0 kg has reached a terminal velocity of 20.0 m/s....
A skydiver with mass m = 50.0 kg has reached a terminal velocity of 20.0 m/s. The skydiver's drag coefficient is:
Why does deploying a parachute slow down a skydiver? A. Parachutes provide air drag. Once the...
Why does deploying a parachute slow down a skydiver? A. Parachutes provide air drag. Once the parachute was deployed the resulting air drag caused the skydiver to actually start going upwards. So in fact, the skydiver doesn't slow down but starts traveling upwards until gravity overcomes the air drag and brings the skydiver safely to the ground. This is why the skydiver slows down. B. At the moment the parachute is deployed the skydiver is moving fast. The high speed...
An Airbus A320 has a total wing surface area of 122.6m^2 and a drag coefficient of...
An Airbus A320 has a total wing surface area of 122.6m^2 and a drag coefficient of 0.0872. In cruise, the aircraft files at 840 km/s (233m/s) at an altitude of 10,000m where the air density is 0.4135 kg/m^3. If the max engine is 100 kN engine, what percentage of that thrust is the pilot going to be using in cruise? *A380 has 2 engines
Determine the terminal velocity of a 90 kg skydiver. How long will it take to reach...
Determine the terminal velocity of a 90 kg skydiver. How long will it take to reach that velocity? Typical drag coefficient and the frontal area of skydivers are 0.1 and 0.15 m2 , respectively.
A 60.0-kg and a 90.0-kg skydiver jump from an airplane at an altitude of 6.00*10^3 ,...
A 60.0-kg and a 90.0-kg skydiver jump from an airplane at an altitude of 6.00*10^3 , both falling in the pike position. Make some assumption on their frontal areas and calculate their terminal velocities. How long will it take for each skydiver to reach the ground (assuming the time to reach terminal velocity is small)? Assume all values are accurate to three significant digits. Use Drag Coefficient 1.21kg/m^3 and frontal Arear of skydiver of 0.140m^2.
The mass of a bicyclist and bike is 80 kg. The drag coefficient is 0.79. Frontal...
The mass of a bicyclist and bike is 80 kg. The drag coefficient is 0.79. Frontal area is 0.42 m^2. The density of air is 1.1 kg/m^3 at this elevation. The terminal velocity is reached when the drag force of a free falling object is equal to the weight. a)Estimate the magnitude of the terminal velocity of the cyclist after he has ridden his bike off of a cliff. Assume that the frontal area remains constant during the fall. b)Estimate...
Consider a skydiver of mass 75 kg who jumps from an airplane flying at an altitude...
Consider a skydiver of mass 75 kg who jumps from an airplane flying at an altitude of 1,900 m. With her parachute open, her terminal velocity is 8.1 m/s. (a) What is the work done by gravity? J (b) What is the average force of air drag during the course of her jump? (Enter the magnitude of the force.) N
A skydiver is at an altitude of 1,525 m. After 11.0 seconds of free fall, he...
A skydiver is at an altitude of 1,525 m. After 11.0 seconds of free fall, he opens his parachute and finds that the air resistance, FD, is given by the formula FD = −bv, where b is a constant and v is the velocity. If b = 100,and the mass of the skydiver is 86.0 kg, first set up differential equations for the velocity and the position, and then find the following. (Assume air resistance is negligible prior to the...
A 510-g squirrel with a surface area of 905 cm2 falls from a 4.4-m tree to...
A 510-g squirrel with a surface area of 905 cm2 falls from a 4.4-m tree to the ground. Estimate its terminal velocity. (Use the drag coefficient for a horizontal skydiver. Assume that the squirrel can be approximated as a rectangular prism with cross-sectional area of width 11.4 cm and length 22.8 cm. Note, the squirrel may not reach terminal velocity by the time it hits the ground. Give the squirrel's terminal velocity, not it's velocity as it hits the ground.)...
A bicycle rider has a drag area of 0.22 m2. She is riding at a velocity...
A bicycle rider has a drag area of 0.22 m2. She is riding at a velocity of 8.3 m/s along the road and the air density is 1.2 kg/m3. Total mass of the rider and bike is 93 kg. The coefficient of rolling resistance is 0.004. She is riding into a headwind with velocity 1.8 m/s. The road is horizontal. What power (watts) must the cyclist produce to maintain the speed of 8.3 m/s?