Answer to Question #181681 in Mechanical Engineering for Diocel Ann Heria

Question #181681

To check the radius of a railroad curve, the effect of a 2-lb weight is observed to be 20.7 lb on a spring scale suspended from the roof of an experimental car rounding the curve at 40mph. what is the radius of the curve?



1
Expert's answer
2021-04-16T07:47:23-0400

"F = \\dfrac{mv\u00b2}{r}"


"F = 20.7\\ Ib\u00d7 9.8ms^{-2}"

"F = 202.86\\ Ibms^{-2}"


"202.86 = \\dfrac{2\u00d740\u00b2}{r}"


"r = \\dfrac{2\u00d7 40\u00b2}{202.86}"


"r = 15.77m"

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