A satellite of mass m orbits a planet at a distance R from the center of the pla

Question

A satellite of mass m orbits a planet at a distance R from the center of the planet whose mass is M. Neglecting the planet's revolution and orbital motion around its star, which of the following represents the total energy of the satellite-planet system?

A satellite of mass m orbits a planet at a distance R from the center of the planet whose mass is M. Neglecting the planet's revolution and orbital motion around its star, which of the following represents the total energy of the satellite-planet system? A. mgR Equation A O Equation B O Equation C O Equation D GMm GMm GMm 2R What is the physical significance of the sign of the total energy? The sign is positive because energy is always a positive quantity The sign is negative because the satellite-planet system is a bound system The sign has no physical significance The sign is negative because the satellite's orbit is closed

Explanation / Answer

E = -GmM / r + 12/*m*v^2 ...........1

mv^2 / r = GmM / r^2

mv^2 = GmM/ r

put this in firs eq

we got

E = - GmM/2r

it is negetive because system is bound system

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.