Question

A car is dropped with parachute on another planet. Mass of car is 200kg, and diameter...

A car is dropped with parachute on another planet. Mass of car is 200kg, and diameter of chute is d and drag force F.

velocity it decends is 50m/s and acceleration gravity of planet is 3 m/s^2 and atmospheric density 0.01kg/m^3.

A model is designed to test on earth using 1/12 scale model, earth gravity 9.81, atmospheric dens. 1.2kg/m^3.

dimensionless: gd/decent velocity , m/density*d^3, f/(density*desc velcity*d^2)

for real tests on earth that would accurately be same, find

1. mass of car

2. decent velocity of car

3. ratio of drag force

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

plz comment if you have any doubts

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A model car is tested in a large wind tunnel at an airspeed of 200 km/h....
A model car is tested in a large wind tunnel at an airspeed of 200 km/h. The model is 0.8m long and is a geometrically similar ¼ scale model of the full-size prototype car. If a drag force of 1.2kN is measured on the model in the wind tunnel, estimate the power the full-size car would require to overcome the drag force when travelling at a speed of 50km/h How would you describe the flow? Are similarity conditions met? Explain....
a.) Calculate the mass of a planet if the gravity (g) of the planet is 5.35...
a.) Calculate the mass of a planet if the gravity (g) of the planet is 5.35 m/sec/sec b.) Calculate the escape velocit of a satellite launched from the surface of Mars, Mass of the planet = 6.41693x1023 kg and the radius of the planet = 3.39x106 m. c.) A rotating whell requires 3 sec. to rotate 37 revolutions, it's angular velocity at the end of 3 sec is 98 rad/sec calulate constant angulat acceleration of the wheel in rads/sec/sec d.)...
Consider a spherical, homogeneous planet with a radius of rp=3985 km and a mass of mp=8.97×1024...
Consider a spherical, homogeneous planet with a radius of rp=3985 km and a mass of mp=8.97×1024 kg. A spherical object with a radius of r0=9.21 m and mass m0=868 kg approaches the planet. Part 1) When the object is 5.33×109 km away from the planet, what is the magnitude of the force the planet exerts on the object? F= N Part 2) When the object is 8.10 m above the surface of the planet, what is the magnitude of the...
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...
Question #1 part A On a planet that is 6.00 times the mass of the Earth...
Question #1 part A On a planet that is 6.00 times the mass of the Earth and 3.00 times the radius of the Earth, the acceleration of gravity on the surface of that planet would be:                          A) 4.90 m/s2 B) 6.53 m/s2       C) 9.80 m/s2                             D) 13.9 m/s2                         E) 19.6 m/s2 Part B A plane performs acrobatic maneuvers in a vertical circle. The pilot passes head down the highest point of the trajectory and just then press the seat...
Consider a high-mass star just prior to a supernova explosion, with a core of diameter 20...
Consider a high-mass star just prior to a supernova explosion, with a core of diameter 20 km and density 4 × 10^17 kg/m^3. (a) Calculate the mass of the core. Give your answer in kilograms and in solar masses. (b) Calculate the force of gravity on a 1-kg object at the surface of the core. How many times larger is this than the gravitational force on such an object at the surface of the Earth? (c) Calculate the escape speed...
1. While enter a highway, a car accelrates from 15.m/s to 32.0m/s at a rate of...
1. While enter a highway, a car accelrates from 15.m/s to 32.0m/s at a rate of 2.90m/s^2. a. how far did the car travel while accelerating? b. how long did it take the car to accelerate from 15.0m/s to 32.0m/s^2 2.Using Newton's law of gravity, calculate the weight of a 90.0kg astronaut standing on the surface of a planet that has the same mass as the earth, but only half the radius of the Earth. 3. a 3,00kg pickup truck...
→A cart with a mass fo 1.5 kg needs to complete a 1.5 meter radius loop...
→A cart with a mass fo 1.5 kg needs to complete a 1.5 meter radius loop the loop. What is the minimum velocity? a. 3.83 b. 12.2 c. 15.62 d. 14.7 e. 9.95 →A 30.0 N force is applied to the edge of a sphere that has a weight of 45.0 N and a radius of 40.0 cm. The sphere is at rest before the applied force. What will be the angular velocity of the sphere as a result of...
Please answer all not understanding: 1. Volumetric expansion coefficients of simple materials are often well catalogued....
Please answer all not understanding: 1. Volumetric expansion coefficients of simple materials are often well catalogued. However, the thermal expansion coefficient β of a human body is less well known. This could affect the human body\'s specific gravity and, therefore, measurements of its body/fat ratio. Suppose that a human body of weight w0 (on dry land) is placed on a scale while completely immersed in formaldehyde of temperature T1. Once the temperature increases by ΔT, the scale reading drops by...
Please give these THREE problems step by step approach to solving 1) A 30 g steel...
Please give these THREE problems step by step approach to solving 1) A 30 g steel ball is released from rest and falls vertically into a steel plate. The ball strikes the plate and is in contact with it for 0.5 ms. The ball rebounds elasticity, and returns to its original height. The time interval for a round trip is 4.00 s. In this situation, the average force exerted on the ball during contact wth the plate is closest to:...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT