A wagon weighing 5100 Kg moving at a speed of 8 km/h has to be brought to rest. Springs made of wire diameter 25mm with a Dm of 250mm and with 24 turns are available. Find the number of springs required in buffer to stop the wagon at a compression of 180mm. b) A close coiled helical spring is made of diameter wire 25mm. The spring index is 8. Find the number of turns required and maximum allowable load if the allowable shear stress is 100 MPa and elongation is limited to 40mm. [G=80 GPa

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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A wagon weighing 5100 Kg moving at a speed of 8 km/h has to be brought to rest. Springs made of wire diameter 25mm with a Dm of 250mm and with 24 turns are available. Find the number of springs required in buffer to stop the wagon at a compression of 180mm.

b)
A close coiled helical spring is made of diameter wire 25mm. The spring index is 8. Find
the number of turns required and maximum allowable load if the allowable shear stress is
100 MPa and elongation is limited to 40mm. [G=80 GPa

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