5. A 0.400 kg mass is attached to the end of a string and is to rotate about the other end, 0.700 m away. The mass begins at rest and undergoes an angular acceleration of 15.0 rad/s. Ignore any gravitational considerations regarding the system.
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.
If the string can withdraw a force of tension that is two times that of what exerts on the mass at t = .500 s , at what time will the string break ?
Answer = .716 s
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