What fraction of original rotational kinetic energy is lost

Reference no: EM13673256

A wheel is rotating freely at angular speed 290 rev/min on as haft whose rotational inertia is negligible. A second wheel, initially at rest and with five times the rotational inertia of the first, is abruptly coupled to the same shaft. (a)What is the angular speed of the resultant combination of the shaft and two wheels? (b) What fraction of the original rotational kinetic energy is lost?

Reference no: EM13673256

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