Now we have a rod-shaped space station of length 648 m and mass 9.09 x 10^6 kg, which can change its length (kind of like an old-fashioned telescope), without changing its overall mass. Suppose that the station is initially rotating at a constant rate of 1.06 rpm. If the length of the rod is reduced to 453 m, what will be the new rotation rate of the space station? 2. A diver of mass 66.5 kg stands on one end of a diving board of mass 24.1 kg, as shown in the diagram. Everything is in equilibrium (since nothing is moving). What is the magnitude of the support force on the opposite end of the diving board?
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.
please answer both parts
1. Now we have a rod-shaped space station of length 648 m and mass 9.09 x 10^6 kg, which can change its length (kind of like an old-fashioned telescope), without changing its overall mass. Suppose that the station is initially rotating at a constant rate of 1.06 rpm. If the length of the rod is reduced to 453 m, what will be the new rotation rate of the space station?
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