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In the reverted planetary train illustrated, find the speed and direction of rotation of the arm if gear $2$ has $22$ teeth and is

unable to rotate, and gear $6$ is driven at $90re\frac{v}{m}in$ in the counterclockwise direction as viewed from the bottom of the

figure. Counterclockwise rotation is considered to be positive.

Choose the direction of rotation of the arm.

Multiple Choice

Counterclockwise

Clockwise

In the reverted planetary train illustrated, find the speed and direction of rotation of the arm if gear $2$ has $22$ teeth and is

unable to rotate, and gear $6$ is driven at $90re\frac{v}{m}in$ in the counterclockwise direction as viewed from the bottom of the

figure. Counterclockwise rotation is considered to be positive.

Calculate the speed of the arm $n_3.$

The speed of the arm $n_3$ is

rev$/$min$.$