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Question: 5 figure 5 shows a weighing machine the object to...

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5. Figure 5 shows a weighing machine. The object to be weighed W is placed on the horizontal platform and the small counter weight w is moved along the horizontal bar until the system is in equilibrium with the bar between the two stops. Find the relationship between W, w and the equilibrium position of the counterweight defined by the distance a. Also, explain why the position of w, defined by the distance b, has no effect on the result, so that it is not necessary to place W at the middle of the platform.
stops 30 40 200 40 O M all dimensions in mm
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