Question

1.Write an expression for the kinetic energy of the falling mass. The expression should be written in terms of the angular velocity ω and the radius R of the pulley where the string attaches. Write your expression in terms of variables, and write down the values of any numerical constants that enter the expression.

2.Write an expression for the kinetic energy of the rotating system. In this case the rotating system is mainly just the aluminum bar; you determined the moment of inertia for that as Iapp in Question 1-10 (the moment of inertia with no square block attached). Write your expression in terms of variables, and write down the values of any numerical constants that enter the expression.

Answer 1