An Atwood machine consists of two masses, mà = 7.2 kg and m³ = 8.0 kg, connected by a cord that passes over a pulley free to rotate about a fixed axis. The pulley is a solid cylinder of radius Ro = 0.40 m and mass 0.70 kg. Part A Determine the magnitude of the acceleration a of each mass. Express your answer using two significant figures. PPearson

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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.