Do Mass and Friction Affect Velocity on an Inclined Plane?

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Discussion Overview

The discussion revolves around the effects of mass and friction on the velocity of blocks rolling down an inclined plane, as well as the implications of removing metal rods from a plastic boat in a tub of water. The scope includes conceptual understanding and potential homework-related inquiries.

Discussion Character

  • Homework-related
  • Conceptual clarification

Main Points Raised

  • One participant questions whether two blocks of different masses will have the same velocity when rolling down an inclined plane without friction.
  • Another participant poses a question about the water level in a tub when metal rods are removed from a boat, seeking a basic explanation.
  • Responses indicate uncertainty about the answers to both questions, with one participant suggesting that the original poster should share their thoughts to facilitate discussion.
  • A reference to an experiment conducted during Apollo 15 is provided, although its relevance to the questions is not elaborated upon.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the answers to the questions posed, and multiple viewpoints regarding the understanding of the concepts remain unresolved.

Contextual Notes

Participants express uncertainty about the principles of gravity and motion on an incline, as well as the effects of buoyancy related to the water level in the tub.

Who May Find This Useful

This discussion may be of interest to students seeking clarification on concepts related to physics, particularly in mechanics and fluid dynamics.

firecool1
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1.) if there are two blocks of different masses rolling down an inclined plane, will their velocity be same? if so then how? there's no friction between the plane and the blocks.

2.) there is a plastic boat in a tub, filled with metal rods. if the metal rods are taken out of the boat and put into the tub, will the level of water in the tub rise? please explain this with basic concepts.
 
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Good questions. How would you answer them?
 
i don't know. that's why i posted it!
 
thanks! :D
but what about the other question? :(
 
firecool1 said:
i don't know. that's why i posted it!
Well, these sound a lot like homework questions. The best way for us to help is for you to tell us what you've come up with so far and where you are stuck.

For the first one, what do you know about gravity and falling objects? How is motion down an incline different from just falling?
 

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