Homework Help: physics

Posted by Anonymous on Friday, March 26, 2010 at 1:31pm.

Suppose a 69 kg person stands at the edge of a 7.8 m diameter merry-go-round turntable that is mounted on frictionless bearings and has a moment of inertia of 1600 kg*m^2. The turntable is at rest initially, but when the person begins running at a speed of 3.7 m/s (with respect to the turntable) around its edge, the turntable begins to rotate in the opposite direction. Calculate the angular velocity of the turntable.

physics - bobpursley, Friday, March 26, 2010 at 1:49pm
momentum conservation

I1*W1= I2*w2

Wturntable=(massman*r^2)3.7(2PI/r)/1600

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