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23 Nov 2019
A pulley, with a rotational inertia of 1.0 × 10-3 kg· m2 about its axle and a radius of 10 cm, is acted on by a force applied tangentially at its rim. The force magnitude varies in time as F = 0.50t + 0.30t2, with F in newtons and t in seconds. The pulley is initially at rest. At t = 3.0 s what are its (a) angular acceleration and (b) angular speed?
A pulley, with a rotational inertia of 1.0 × 10-3 kg· m2 about its axle and a radius of 10 cm, is acted on by a force applied tangentially at its rim. The force magnitude varies in time as F = 0.50t + 0.30t2, with F in newtons and t in seconds. The pulley is initially at rest. At t = 3.0 s what are its (a) angular acceleration and (b) angular speed?
