Determing Acceleration, Tension

AI Thread Summary
To determine the acceleration of the falling masses, use the standard constant acceleration equations based on the known distance and time. The tension in the string, when the system is not accelerating, can be calculated as the product of the mass of the hanging weight and the acceleration due to gravity (mg). If the system is accelerating, additional calculations involving the net force and friction must be considered. The frictional force that must be overcome to initiate movement is also crucial for understanding the dynamics of the wheel. This approach allows for accurate calculations of both acceleration and tension in the system.
Oijl
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Homework Statement


I had a wheel.
I hung five weights of known masses from the wheel, and these fell a known distance in a known time.
I also hung a weight and added mass until it just began to move, so I know the frictional force the wheel must overcome to spin.

I feel so silly asking it, but how can I find
the acceleration of the falling masses?
the tension in the string?


Homework Equations





The Attempt at a Solution

 
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Hi Oijl:smile:
Oijl said:
I hung five weights of known masses from the wheel, and these fell a known distance in a known time.
I also hung a weight and added mass until it just began to move, so I know the frictional force the wheel must overcome to spin.

how can I find
the acceleration of the falling masses?
the tension in the string?

You can get the acceleration from the time and distance by using one of the standard constant acceleration equations.

And the tension in the string, when it isn't accelerating, will just be mg. :wink:
 
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