The angular displacement of a spinning shaft is given as $\theta=0.7 t^{2}-5 t+3$, where $\theta$ is in radians and $t$ is in seconds. Find the angular velocity after one minute.

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The Answer of The angular displacement of a spinning shaft is given as $\theta=0.7 t^{2}-5 t+3$, where $\theta$ is in radians and $t$ is in seconds. Find the angular velocity after one minute.

The Angular Displacement of a Spinning Shaft Is Given As \theta=0.7