This diagram shows the variation of the Earths gravitational field strength with distance from its centre. a.
Question:
This diagram shows the variation of the Earth’s gravitational field strength with distance from its centre.
a. Determine the gravitational field strength at a height equal to 2R above the Earth’s surface, where R is the radius of the Earth.
b. A satellite is put into an orbit at this height. State the centripetal acceleration of the satellite.
c. Calculate the speed at which the satellite must travel to remain in this orbit.
d i. Frictional forces mean that the satellite gradually slows down after it has achieved a circular orbit. Draw a diagram of the initial circular orbital path of the satellite, and show the resulting orbit as frictional forces slow the satellite down.
ii. Suggest and explain why there is not a continuous bombardment of old satellites colliding with the Earth.
Step by Step Answer:
a Determine the gravitational field strength at a height equal to 2R above the Earths surface where ...View the full answer
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
