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Revision notes on Orbital Speed Equation for the CIE IGCSE Physics syllabus, written by the Physics experts at Save My Exams.
Orbital speed is the speed needed to achieve the balance between gravity’s pull on the satellite and the inertia of the satellite’s motion. This is approximately 27,359 km per hour at an altitude of 242 km.
The orbital speed formula is provided by, \ (\begin {array} {l}V_ {orbit} = \sqrt {\frac {GM} {R}}\end {array} \) Where, G = gravitational constant. M = mass of the planet. r = radius.
The term can be used to refer to either the mean orbital speed (i.e. the average speed over an entire orbit) or its instantaneous speed at a particular point in its orbit.
6 days ago · This calculator simplifies the process of determining the orbital speed necessary for a stable orbit around Earth, making it a valuable tool for students, educators, and professionals in the fields of physics and space science.
Orbital speed: \[ \begin{aligned} v(\phi) = \sqrt{\frac{\gamma}{\mu c}} \sqrt{ \frac{c^2}{r^2} + \epsilon^2 \sin^2 \phi} \\ \approx \sqrt{\frac{GM}{c}} \sqrt{\frac{c^2}{r^2} + \epsilon^2 \sin^2 \phi}. \end{aligned} \]
Oct 25, 2023 · Calculate the orbital speed of a satellite orbiting Earth at an altitude of 300 kilometers. – Mass of Earth (M) ≈ 5.972 × 10^24 kg. – Radius of Earth (R) ≈ 6,371,000 m + 300,000 m (300 km in meters) – Using the formula V = sqrt (GM / R), calculate the orbital speed.
