Determine the normal tension required to make a tape exactly 30.0 m between its ends when used in an unsupported mode, if the tape has a cross-sectional area of 0.045cm2 and weighs 0.90 kg. Assume that the tape is exactly 30.0 m when supported throughout its length under a standard pull of 6.0 kg, and its modulus of elasticity is 2.10x106 kg/cm2.
Determine the normal tension required to make a tape exactly 30.0 m between its ends when used in an unsupported mode, if the tape has a cross-sectional area of 0.045cm2 and weighs 0.90 kg. Assume that the tape is exactly 30.0 m when supported throughout its length under a standard pull of 6.0 kg, and its modulus of elasticity is 2.10x106 kg/cm2.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Determine the normal tension required to make a tape exactly 30.0 m between its ends when used in an unsupported mode, if the tape has a cross-sectional area of 0.045cm2 and weighs 0.90 kg. Assume that the tape is exactly 30.0 m when supported throughout its length under a standard pull of 6.0 kg, and its modulus of elasticity is 2.10x106 kg/cm2.
Where:
PN = normal tension or the pull which will eliminate the effect of sag (kg)
W = total weight of tape between supports (kg)
A = cross- sectional area of tape (cm2)
E = modulus of elasticity of tape material (kg/ cm2)
Ps = standard pull for the tape (kg
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