Speedboat Acceleration Problem: Time and Velocity at No-Wake Buoy | Kevin

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Homework Help Overview

The discussion revolves around a speedboat acceleration problem involving constant acceleration as it approaches a no-wake buoy. The original poster presents a scenario where the speedboat is initially traveling at 30.0 m/s and decelerates at -3.5 m/s² over a distance of 100 meters to reach the buoy. The questions posed include determining the time taken to reach the buoy and the final velocity at that point.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the relevant equations of motion for constant acceleration and question the original poster's understanding of how to apply them. There is a focus on identifying missing variables and how to initiate the problem-solving process.

Discussion Status

The discussion is ongoing, with participants encouraging the original poster to utilize known variables and equations to begin solving the problem. There is an acknowledgment of the need to start the problem-solving process, though no consensus or specific method has been established yet.

Contextual Notes

The original poster expresses difficulty in starting the problem due to perceived missing variables, which may indicate a lack of clarity on how to approach the given information.

Husker70
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A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 100m ahead.
The pilot slows the boat with a constant acceleration of -3.5 m/s2 by reducing the throttle. (a) How long does it take the boat to reach the buoy? (b) What is the velocity
of the boat when it reaches the bouy?

Thanks,
Kevin
 
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Don't you know any equations of motion for constant acceleration that might be related to this problem?
 
Dick,
I know all of the equations however I seem to be missing a variable to get started.
I'm not seeing how to start with time or final velocity.

Kevin
 
You have an initial distance, an initial velocity and the acceleration. Put some of those numbers into the equations you know and solve for the variables you don't know. You have to get started before anyone can help. The attempt doesn't have to be correct.
 

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