Auto/Motor Building a mini physics motor boat -- Help?

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SUMMARY

The discussion centers on the rotational direction of a propeller for a mini physics motor boat, specifically whether it should rotate clockwise or counter-clockwise. It is concluded that the direction of rotation does not significantly impact the boat's acceleration, as the propeller's design dictates its effectiveness. The primary factor is the propeller's ability to displace water molecules, creating thrust regardless of the spin direction. Thus, the focus should be on ensuring the propeller operates as intended rather than on the specific rotational direction.

PREREQUISITES
  • Understanding of basic physics principles related to propulsion
  • Familiarity with marine engineering concepts
  • Knowledge of propeller design and functionality
  • Basic comprehension of fluid dynamics
NEXT STEPS
  • Research propeller design principles for marine applications
  • Explore fluid dynamics and its impact on boat propulsion
  • Learn about thrust generation in different propeller configurations
  • Investigate the effects of water displacement on boat speed and acceleration
USEFUL FOR

This discussion is beneficial for hobbyists building model boats, students studying physics or engineering, and anyone interested in understanding the mechanics of propulsion in aquatic vehicles.

Kimkkjuii
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Should the propeller rotate clockwise or counter-clockwise? Which way will be faster and will allow the boat to accelerate the fastest?
 
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What do you think and why?
 
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CWatters said:
What do you think and why?
I don't know that's why I asked? Please help I really need an answer
 
Kimkkjuii said:
I don't know that's why I asked? Please help I really need an answer

What is the context for the question? Please supply many more details so we can try to help you. Is this problem for schoolwork?
 
It doesn't matter which way it rotates, as long as it's rotating in the direction it is designed for.
Either way it's forcing water molecules to move in one direction, so the boat moves in the other direction.
The water molecules don't care which direction the propeller spins, they only are experiencing a compression effect, so they move.
 

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