Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. Alex decides to play it safe and chooses to sit in the inner section at a distance of 1.3 m from the center. The carousel takes 5.0 s to make each complete revolution. (a) What is Mary's angular speed wy and tangential speed vy? "M rev/s VM = m/s (b) What is Alex's angular speed wA and tangential speed v? rev/s VA m/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.
Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. Alex decides to play it safe and chooses to sit in the inner section at a distance of 1.3 m from the center. The carousel takes 5.0 s to make each complete revolution.
(a) What is Mary's angular speed ?M and tangential speed vM?
?M _____rev/s
vM =_____m/s
(b) What is Alex's angular speed ?A and tangential speed vA?
?A _____rev/s
vA =_____m/s
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