A ceiling fan is rotating at 0.96 rev>s. Whenturned off, it slows uniformly to a stop in 2.4 min. (a) How manyrevolutions does the fan make in this time? (b) Using the resultfrom part (a), find the number of revolutions the fan must makefor its speed to decrease from 0.96 rev>s to 0.48 rev>s.
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.
A ceiling fan is rotating at 0.96 rev>s. When
turned off, it slows uniformly to a stop in 2.4 min. (a) How many
revolutions does the fan make in this time? (b) Using the result
from part (a), find the number of revolutions the fan must make
for its speed to decrease from 0.96 rev>s to 0.48 rev>s.
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