🎴 Flashcard Mode
Space missions and artificial satellites - class-X
Card1 / 14
Mastered0
Review0
QuestionClick to flip
Communication satellites move in orbits of radius 44,400 km around the earth find the acceleration of such a satelite, assuming that the only force acting on, it is that due to the earth.Mass of the earth $ = 6 \times {10^{24}}Kg.$
AnswerClick to flip back
A
$0.2;m{s^{ - 2}}$
💡 Explanation:
The acceleration (a) of a satellite in orbit is given by the gravitational field strength: a = GM / r^2. Using G = 6.67e-11, M = 6e24, and r = 4.44e7 meters, a = (6.67e-11 * 6e24) / (4.44e7)^2 = 4e14 / 1.97e15 = 0.203 m/s^2.