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A boeing 747 "jumbo jet" has a length of 59.7m the runway on which the plane lands intersects another runway. the width of the intersection is 25.0m. the plane decelerates through the intersection at a rate of 5.7 meter per second square and clears it with a final speed of 4.5m/s. how much time is needed for the plane to clear the intersection?

 

 

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