The 19-kg uniform rectangular plate is supported by an ideal pivot at O and a spring which must be compressed prior to being slipped into place at point A. If the modulus of the spring is k = 2.4 kN/m, what must be its undeformed length L? 0.09 to 0.43 m 0.25 m 0.17 m k 0.14 m
The 19-kg uniform rectangular plate is supported by an ideal pivot at O and a spring which must be compressed prior to being slipped into place at point A. If the modulus of the spring is k = 2.4 kN/m, what must be its undeformed length L? 0.09 to 0.43 m 0.25 m 0.17 m k 0.14 m
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need help finding delta L, I got 215.5mm and that was not correct.
Transcribed Image Text:The 19-kg uniform rectangular plate is supported by an ideal pivot at O and a spring which must be compressed prior to being slipped
into place at point A. If the modulus of the spring is k = 2.4 kN/m, what must be its undeformed length L?
0.09
0.43 m
0.25 m
0.17 m
k
0.14
Transcribed Image Text:The force in the spring is related to the change in length AL of the spring. Find AL.
Answer: AL =
215.5
mm
Hint
Assistance Used
Be careful of the units. The spring constant is given in kN/m, the distances are all listed in meters, and the answer should be in
mm.
Remember that the spring constant is the ratio of the force in the spring to the change in distance of the spring.
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