The Moon does not crash into the Earth because:(a) the net force on it is zero.(b) it is beyond the main pull of the Earth’s gravity.(c) it is being pulled by the Sun as well as by the Earth.(d) it is freely falling but it has a high tangential velocity
Angular speed, acceleration and displacement
Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.
Angular Position
Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.
The Moon does not crash into the Earth because:
(a) the net force on it is zero.
(b) it is beyond the main pull of the Earth’s gravity.
(c) it is being pulled by the Sun as well as by the Earth.
(d) it is freely falling but it has a high tangential velocity
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