The James Webb Space Telescope is positioned around 1.5 million kilometres from the Earth on the side facing away from the Sun. The telescope remains at this distance and orbits around the Sun with the Earth’s orbital velocity. (a) Why is it important to position the JWST behind the Earth? (b) Determine the angular velocity ω of the telescope as it orbits around the Sun. The centrifugalFω and gravitational forceFG are acting on objects orbiting the Sun: F = Fω−FG (c) Based on this, how much should the telescope accelerate towards or away from the Sun? (d) Why is the orbit of the telescope stable nonetheless? What otherforces need to be considered
Comments
Leave a comment