A girl pushes on a large wine barrel, which has a radius of 0.259 m and moment of inertia of 146 kg m2, in order to roll it from one side of the warehouse to another. Suppose she pushes on the barrel tangent to its surface with a steady force of 46.2 N. How long (in seconds) will it take her to rotate the barrel one full revolution, starting from rest?
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 girl pushes on a large wine barrel, which has a radius of 0.259 m and moment of inertia of 146 kg m2, in order to roll it from one side of the warehouse to another. Suppose she pushes on the barrel tangent to its surface with a steady force of 46.2 N. How long (in seconds) will it take her to rotate the barrel one full revolution, starting from rest?
Given,
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