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SPRINGS IN PARALLEL Two objects are said to be in parallel when they both act on...

SPRINGS IN PARALLEL

Two objects are said to be in parallel when they both act on the system in the same way, e.g., two forces are in parallel if they have the same direction and are applied at the same point.

A light rod of length 47.1 cm is held aloft from the ceiling by two springs attached to its ends. The left spring has a stiffness of 13.8 kg/s2 and equilibrium length of 30.5 cm and the right spring has a stiffness of 11.9 kg/s2 and equilibrium length of 20.2 cm. A ring weighing 523 g is placed 21.6 cm from the left spring.

Now consider modelling the two springs as if there were only one spring that held the ring aloft.

(e) What is the equilibrium length of the spring?

(f) How much does the spring stretch when the ring is placed on it?

(g) What is the stiffness of the spring?

Science   Advanced-Physics   
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