Help with Acceleration due to gravity

AI Thread Summary
Acceleration due to gravity is commonly accepted as 9.8 m/s², with a more precise value of 9.80665 m/s² found in scientific literature. The discussion emphasizes the need for clarity in formulating questions related to this topic. Participants are encouraged to provide specific word problems to facilitate better assistance. The importance of referencing standard values from credible sources is highlighted. Clear and well-defined questions will lead to more effective support in understanding acceleration due to gravity.
yashin25
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Hey guys i really need help with Acceleration due to gravity (use word problems to define ur answer)
 
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g=9.8m/s^2
 
yashin25 said:
Hey guys i really need help with Acceleration due to gravity (use word problems to define ur answer)

Try to fix your questions so i can answer it. I assume that you are looking for 9.8 m/s^2, but i don't see how to define an answer using a question?
 
The standard value is 9.80665 m/s^2.But this is found in any CM book.It has to be something else...

Daniel.
 

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
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