An ultracentrifuge accelerates from rest to 109700 rpm in 2.05 min. ω = 109700 rpm t = 2.05 min l = 9.4 cm a. What is its angular acceleration in rad/s2? α = b. What is the tangential acceleration of a point 9.4 cm from the axis of rotation in m/s2? at = c. What is the centripetal acceleration in multiples of g of this point at full speed? a/g =
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.
An ultracentrifuge accelerates from rest to 109700 rpm in 2.05 min.
ω = 109700 rpm
t = 2.05 min
l = 9.4 cm
a. What is its
b. What is the tangential acceleration of a point 9.4 cm from the axis of rotation in m/s2? at =
c. What is the centripetal acceleration in multiples of g of this point at full speed? a/g =
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