- #1
jbrandon
- 11
- 0
This question is confusing me, trying to find an equation for "tensile force" has left me confused since I've found no equation for it just for tension, tensile stress and tensile strain, just wanting to make sure I've not missed anything or done it incorrectly
1. Homework Statement
At a building site, an iron girder of mass 420 kg is suspended from a crane
by a steel cable. Assume that the cable has a circular cross-section of
diameter 25 mm.
Determine the tensile force in Newtons on the cable in kN to 2 decimal
places. (Take the acceleration due to gravity as 9.8 m s−2 and ignore the
mass of the cable).
i calculated it as tension assuming tensile force means tension[/B]
T = mg x ma
(420kg x 9.8ms2) x (420kg x 9.8ms2) = 8232 kg ms2
which i then converted to Newtons = 8232N (8.23Kn)
1. Homework Statement
At a building site, an iron girder of mass 420 kg is suspended from a crane
by a steel cable. Assume that the cable has a circular cross-section of
diameter 25 mm.
Determine the tensile force in Newtons on the cable in kN to 2 decimal
places. (Take the acceleration due to gravity as 9.8 m s−2 and ignore the
mass of the cable).
Homework Equations
i calculated it as tension assuming tensile force means tension[/B]
T = mg x ma
The Attempt at a Solution
(420kg x 9.8ms2) x (420kg x 9.8ms2) = 8232 kg ms2
which i then converted to Newtons = 8232N (8.23Kn)