(a) What is the period of rotation of the Earth in seconds? (b) What is the angular velocity of the Earth in rad/s? (c) Given that Earth has a radius of 6.4 × 106 m at its equator, what is the linear velocity at Earth’s surface?
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.
It takes the Earth 24 hours to make a complete rotation around its axis.
(a) What is the period of rotation of the Earth in seconds?
(b) What is the
(c) Given that Earth has a radius of 6.4 × 106 m at its equator, what is the linear velocity at Earth’s surface?
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