Aman stands at the center of a platform that rotates without friction with an angular speed of 3.95 rev/s. his arms are outstretched, and he holds a heavy weight in each hand. the moment of inertia of the man, the extended weights, and the platform is 12.5 kg*m^2. when the man pulls the weights inward toward his body, the moment of inertia decreases to 2.5 kg*m^2. what is the resulting angular speed of the platform?

= 124.05 rad/s

Explanation:

Using the conservation of the angular momentum:

so:

where is the initial moment of inertia, the initial angular velocity, the final moment of inerta and the final angular velocity.

Note: Wi = 3.95 rev/s = 24.81 rad/s

Then, replacing values, we get:

Finally, solving for :

= 124.05 rad/s

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation