Frames of Reference: Linear Acceleration View - Comments

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The discussion centers on the application of linear acceleration in collision dynamics, particularly in scenarios involving mid-air collisions or inclined planes. Participants express appreciation for the insights shared in the PF Insights post, highlighting effective use of media and diagrams. There is a consensus that normal collision dynamics should apply in these cases, as the colliding bodies are within the same linearly accelerating frame. Specific examples from previous homework forums are referenced to support this understanding. The conversation emphasizes the relevance of linear acceleration in analyzing collision scenarios.
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Frames of Reference: Linear Acceleration View

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Interesting post - thankyou! Have dabbled with similar ideas.

There have been a couple of problems in the homework forums where there is a collision either in mid air or an inclined plane. In these situations I have advised that normal collision dynamics will apply since the colliding bodies are in the same "linearly accelerating frame". Would this be correct? See for eg:

https://www.physicsforums.com/threads/collision-in-a-free-fall.714625/#post-6087213

and

https://www.physicsforums.com/threa...ollision-going-up-a-ramp.959006/#post-6081332
 

Thread 'Mousetrap Car Energy efficiency'

For simple comparison, I think the same thought process can be followed as a block slides down a hill, - for block down hill, simple starting PE of mgh to final max KE 0.5mv^2 - comparing PE1 to max KE2 would result in finding the work friction did through the process. efficiency is just 100*KE2/PE1. If a mousetrap car travels along a flat surface, a starting PE of 0.5 k th^2 can be measured and maximum velocity of the car can also be measured. If energy efficiency is defined by...
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