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griokin

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- Thread starter griokin
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griokin

- #2

enigma

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Hooke's law is F=k*x, where x is the displacement, k is the spring constant, and F is the force.

- #3

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the 16 inches of travel could mean several things. from the information given thus far, i am going to assume the cart can drop 16 inches before it bottoms out. now we must look at how the sping is connected. if the spring is a coil inbetween the weel and cart, a direct relationship can be used here. but if the spring is connected to an A-arm, we can say the relationship of the angle [the] that the arm is allowed to move to the arm is 2R_{arm } (sin[the] /2)= 16 inches or [the] /2=arcsin (8 inches / R_{arm }) ; and now we must consider how and where the spring is attatched to find out exactly how much force is required. So to answer the question, you did not give enough information to calculate it.

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