eiptical orbit are true? of the behavior of your computer model of a planet orbi
ID: 1660175 • Letter: E
Question
eiptical orbit are true? of the behavior of your computer model of a planet orbiting a star, and on your reading in the textbook, which of the following statements about an At every instant, dret point from the planet to the star. The direction of the planet's momentum is changing at every instant. The gravitational force on the planet due to the star always acts at angn angle to the planet's momentum. The magnitude of the planet's momentum is constant O At any instant the momentum of the planet is tangent to the planet's trajectory Additional Materials Section &7Explanation / Answer
1)At every instant the force of gravitation is towards the focus of the ellipse where the star is.So first statement is true.
2) There is a component of force that is perpendicular to the motion of the planet.So momentum changes every moment. So second statement is also true.
3) The gravitational force is towards the star which is at the focus of ellipse. So the force is not always at right angle to the planet's momentum. So third statment is false.
4) Speed changes for the palnet, when it is close to the star it is faster than when it is farther. So fourth statement is false.
5) At any instant in the orbit the velocity is perpendicular to the trajectory. So fifth statement is true.
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