What is the resulting angular speed of the platform

Assignment Help Physics

Reference no: EM13340645

You stand on a frictionless platform that is rotating at anangular speed of 1.2 rev/s. Your arms are outstretched, and you hold a heavyweight in each hand. The moment of inertiaof you, the extendedweights, and the platform is 8.1 kg· m2. Whenyou pull the weights in toward your body, the moment of inertia decreases to 3.9 kg ·m2.

(a) What is the resulting angular speed of the platform?

(b) What is thechange in kinetic energy of the system?

Reference no: EM13340645

Questions Cloud

What is their phase difference : Two particles execute simple harmonic motion of the same amplitude and frequency along close parallel lines. What is their phase difference

Determine the tension in the supporting cable : A crane which is effectively fixed to ground lifts a box of mass m with constant speed. The arm of the crane is supported at its base by a friction-free pivot. Determine the tension in the supporting cable

Estimate the current amplitude : Suppose you take a 2.0×102? resistor and a 0.40H inductor and make a series circuit with a voltage source that has voltage amplitude 30V, What is the current amplitude

Dissociative identity disorder : How is Dissociative Identity Disorder (DID) related to PTSD (Post Traumatic Stress Disorder)? Is it a defense mechanism?

What is the resulting angular speed of the platform : You stand on a frictionless platform that is rotating at anangular speed of 1.2 rev/s. Your arms are outstretched, and you hold a heavyweight in each hand. What is the resulting angular speed of the platform

Contrast behavior therapy and cognitive behavior therapy : Compare and contrast Behavior therapy and Cognitive Behavior therapy

Calculate johnson expense deduction using the 2009 : Calculate Johnson's expense deduction using the 2009 Form 2106 (Employee Business Expenses) based on actual automobile expenses and other employee business expenses.

Operating income and breakeven point in sales dollars : What level of sales do we need to breakeven assuming my product mix and what impact would this have on our operating income and breakeven point in sales dollars?

What is the rate at which heat is generated : Assume that the coefficient of friction between your hands is 0.5, that the normal force between your hands is 35 N, What is the rate at which heat is generated

User Account

All Pages