Two Elastic/Inelastic Questions - Really Easy

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Homework Help Overview

The discussion revolves around two questions related to elastic and inelastic collisions, as well as the effects of rain accumulation on a moving cart. The subject area includes concepts from mechanics and conservation laws.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to identify the nature of the collisions based on given scenarios and expresses uncertainty about their answers. Some participants question the validity of the provided options for both problems.

Discussion Status

The discussion is ongoing, with participants sharing their thoughts on the correctness of the answers. There is an indication that some participants are reconsidering their initial interpretations, particularly regarding the second question.

Contextual Notes

The original poster mentions having previously answered the questions incorrectly, which may influence their current reasoning and the discussion dynamics.

Dooga Blackrazor
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A 6kg green ball with a speed of 2 m/s travels to the right and strikes a yellow ball of 3kg initially at rest. After the balls collide, the green ball continues to the right with a speed of 1 mls and the yellow ball moves to the right with a speed of 2 m/s Which of the statements is true?

1, The type of collision cannot be determined from the information given.
2. THe collision was totally inelastic.
3. The collision was inelastic.

I think it is 3 but I am not certain.

An open cart on a level surface is rolling without fricitonal loss through a vertical downpour of rain. As the cart rolls, rainwater accumulates in the cart. The mass will:

1. Decrease because of conservation of momentum.
2. Decrease because of conservation of mechanical energy.
3. Remain the same.

I think it is 1.

So you know - I am not cheating. I already did the quiz and got these questions wrong.
 
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None of the answers (1,2,3) look right in both of the problems.
 
I meant in the second question.
 

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