It has been proposed that a spaceship might be propelled in the solar system by radiation pressure, using a large sail made of foil. How large must the surface area of the sail be if the radiation force is to be equal in magnitude to the Sun's gravitational attraction? Assume that the mass of the ship + sail is 1800 kg, that the sail is perfectly reflecting, and that the sail is oriented perpendicular to the Sun's rays. (With a larger sail, the ship is continuously driven away from the Sun.) The rate at which the Sun emits energy is 3.90 × 1026 W. The Sun's mass is 1.99 × 1030 kg. Gravitational constant is 6.67 × 10-11 N m2/kg2.
It has been proposed that a spaceship might be propelled in the solar system by radiation...
Chapter 33, Problem 024 It has been proposed that a spaceship might be propelled in the solar system by radiation pressure, using a large sail made of foil. How large must the surface area of the sail be if the radiation force is to be equal in magnitude to the Sun's gravitational attraction? Assume that the mass of the ship + sail is 1500 kg, that the sail is perfectly reflecting, and that the sail is oriented perpendicular to the...
It has been proposed that a spaceship might be propelled in the Solar System by radiation pressure, using a large sail made of foil. The reflectivity of foil causes the radiation force to be twice what it is normally. Calculate the area (in square kilometers) that the sail must be for the radiation force to be equal to the Sun’s gravitational attraction. Assume that the mass of the ship and sail is 1500 kg and Q=1
4. A space boat is to be designed such that the solar radiation power on its sail counters the sun's gravitational force. Assume that total weight of the boat is 1000 kg Calculate the surface area of the sail Note: The mean distance between earth and sun is 1.5x1011m, the mass of the sun is 1.99x1030kg, the gravitational constant is 6.67x10-11m/s2, the total solar radiation power density on earth is 1.4 kW/m2 4. A space boat is to be designed...
1. The farthest planet in the solar system has an average distance from the Sun of 5.9 x 109 km and a mass of 1.99 x 1030 kg. The period of this planet around the Sun is: 25 and 78 and 247 and 782 and 2. The gravitational attraction of a 100 kg satellite in a circular orbit around the Earth with a period of 6 hours is: 89 N 138 N 224 N 876 N
In Example 34.6, we imagined equipping 1950DA, an asteroid on a collision course with the Earth, with a solar sail in hopes of ejecting it from the solar system. We found that the enormous size required for the solar sail makes the plan impossible at this time. Of course, there is no need to eject such an object from the solar system; we only need to change the orbit. A much more pressing problem is Apophis, a 300-m asteroid that may be...