(Solved): In the figure, a 10-lb weight is suspended from two spring scales, each of which has negligible wei ...

In the figure, a 10-lb weight is suspended from two spring scales, each of which has negligible weight. Which one of the following statements about the readings in the scales is true? The lower scale will read zero, the top scale will read $10\mathrm{lb}$. Each scale will show a reading between one and $10\mathrm{lb}$, such that the sum of the two is $10\mathrm{lb}$. However, exact readings cannot be determined without more information. The top scale will read zero, the lower scale will read $10\mathrm{lb}$. Each scale will read $5\mathrm{lb}$. None of these is true.