Find the final horizontal velocity of the cab when the speed of the main blades is changed from 180 to 240 rpm and also find the force exerted by the tail propeller if the change in speed takes place uniformly in 12 sec.

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Chapter 17.2, Problem 17.85P

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Find the final horizontal velocity of the cab when the speed of the main blades is changed from 180 to 240 rpm and also find the force exerted by the tail propeller if the change in speed takes place uniformly in 12 sec.

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