The wheels of a skateboard roll without slipping as it acceleratesat 0.35 m>s2down an 85-m-long hill. If the skateboarder travelsat 1.8 m>s at the top of the hill, what is the average angular speedof the 2.6-cm-radius whe els during the entire trip down the hill?
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.
The wheels of a skateboard roll without slipping as it accelerates
at 0.35 m>s2
down an 85-m-long hill. If the skateboarder travels
at 1.8 m>s at the top of the hill, what is the average angular speed
of the 2.6-cm-radius whe els during the entire trip down the hill?
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