What is her new rotational velocity

Assignment Help Physics

Reference no: EM13690664

Problem: A student sitting on a frictionless rotating stool has rotational inertia 0.90kg•m² about a vertical axis through her center of mass when her arms are tight to her chest. The stool rotates at 7.30 rad/s and has negligible mass. The student extends her arms until her hands, each holding a 3.9 kg mass, are 0.72 m from the rotation axis.

Part I: Ignoring her arm mass, what's her new rotational velocity?

Part II: Repeat if each arm is modeled as a 0.72m long uniform rod of mass of 5.0kg and her total body mass is 64kg.

Rework your solution from the starting and check each step carefully.

Reference no: EM13690664

Questions Cloud

Data resources and processes : Data Resources and Processes

Find the total mass of matter and antimatter required : The starship Enterprise on the television program Star Trek was powered by a matter-antimatter reactor. What is the total mass of matter and antimatter required

Draw lewis structures for each with valence electrons : Question- There is three different possible isomers of a difluoroethene, C2H2F2. Draw Lewis structures for each, including all valence electrons, predict the polarity] of each and label each as either a structural or stereoisomer-if stereoisomer, ..

Explain the roles of logistics and supply chain strategy : Explain the roles of logistics and supply chain strategy in the context of a firm

What is her new rotational velocity : A student sitting on a frictionless rotating stool has rotational inertia 0.90kg•m2 about a vertical axis through her center of mass when her arms are tight to her chest. Ignoring her arm mass, what's her new rotational velocity

What is the ph of the solution which results from mixing : Question- What is the pH of the solution which results from mixing 50.0 mL of 0.30 M HF(aq) and 50.0 mL of 0.30 M NaOH(aq) at 25 °C? (Ka of HF = 7.2 × 10-4)

Affect the controlling aspect of a strategic plan : Affect the controlling aspect of a strategic plan

Find the velocity of the heavier car : Two railroad freight cars with masses 130Mg and 170Mg approach with equal speeds of 0.360 m/s, Find the velocity of the heavier car after the collision

The reduction potential for the reduction of silver ion : Question- The observed Ecell for this electrochemical cell was 1.13 V. In this cell, nickel was used as the reference

User Account

All Pages