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

An object with a mass of 2 kg 2 kg is traveling in a circular path of a radius of 2 m2 m. If the object's angular velocity changes from 2 Hz 2 Hz to 9 Hz 9 Hz in 1 s 1 s, what torque was applied to the object?