# An Atwoods machine consists of two masses, m A and m B , which are connected by a massless…

An Atwoods machine consists of two masses,

mA and mB, which are connected by a massless inelastic

cord that passes over a pulley, Fig. 10 57. If the pulley has radius R and

moment of inertia I about its axle, determine the acceleration of the masses mA

and mB, and compare to the situation in which the moment of inertia

of the pulley is ignored. [Hint: The tensions FTA and FTB

are not equal. We discussed the Atwood machine in Example 4 13, assuming I = 0

for the pulley.]

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An Atwoods machine consists of two masses,

mA and mB, which are connected by a massless inelastic

cord that passes over a pulley, Fig. 10 57. If the pulley has radius R and

moment of inertia I about its axle, determine the acceleration of the masses mA

and mB, and compare to the situation in which the moment of inertia

of the pulley is ignored. [Hint: The tensions FTA and FTB

are not equal. We discussed the Atwood machine in Example 4 13, assuming I = 0

for the pulley.]

FIGURE 10-57

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