An object with a mass of # 2 kg# is traveling in a circular path of a radius of #2 m#. If the object's angular velocity changes from # 2 Hz# to # 9 Hz# in # 1 s#, what torque was applied to the object?

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Answer 1 · 2016-04-22T14:14:21

Torque #tau=Ixxalpha=mr^2xx(w_2-w_1)/t=mr^2xx(2pi(n_2-n_1))/t#
#=2xx2^2xx2xxpixx(9-2)/1=352Nm#