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1. The problem statement, all variables and given/known data

Gears A and B, of Masses 4kg and 10kg, respectively, are rotating about their mass centers. The radius of gyration about the axis of rotation is 100mm for A and 300mm for B. A constant couple of C=0.75Nm acts on gear A. Neglecting friction, compute:

- Angular Acceleration of each gear

- Tangential contact force between the gears at C

May want to look at attachment for image.

2. Relevant equations

3. The attempt at a solution

Started with the smaller gear.

Using T=I[itex]\alpha[/itex] , where I=mr^2

Rearrange the equation to get [itex]\alpha[/itex] = 0.75 / (4*0.1^2) = 18.75 rad/s^2

Not to sure how to draw a relationship with the 2nd larger gear. Maybe using w1/w2 = r2/r1 then [itex]\alpha[/itex] = w^2 * r

Thanks,

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# Dynamics Physics - Acceleration Analysis / Gear Ratios /

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