Consider the set up in section 3.2. suppose the mass hanging from the side post has a mass of 100g, the side post is located 20cm from the center post, and the mass hanging from the pulley has a weight of 55g. once the 55g mass is removed, what angular velocity ω will the system need for the side post mass to return to the vertical position? consider equation 8.1, and think about the role of the hanging 55g mass.