A safety device brings the blade of a power mower from an initial angular speed of ω1 to rest in 1 revolution. At the same constant acceleration, how many revolutions would it take the blade to come to rest from an initial angular speed ω that was three times as great, ω = 3ω1
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 safety device brings the blade of a power mower from an initial angular speed of ω1 to rest in 1 revolution. At the same constant acceleration, how many revolutions would it take the blade to come to rest from an initial angular speed ω that was three times as great, ω = 3ω1 ?
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