In: Physics
An object of mass m is in a circular orbit another heavier
object of mass M. The radius of the orbit is R.
(a) Derive the speed of the orbiting object.
(b) Use this speed to derive the period of the circular
orbit.
(c) Use your answer and the provided value to determine the period
of Earth’s orbit around
the Sun based on our simplified circular motion model. Compare this
to the actual value which you can look up.
Use the astronomical information below to solve the following
problems. G = 6.67 x10-11 N m2/kg2
Mass of the Earth = 5.974 x1024 kg
Radius of the Earth = 6.3666x106 m
Mass of the Moon= 7.347x1022 kg Radius of the Moon = 1.737x106 m
Earth - Moon distance = 3.816x108 m Mass of the Sun = 1.989x1030 kg
Earth - Sun distance = 1.496x1011 m