Springs

A helical compression spring made of wire of circular cross-section is subjected to a compressive load. The maximum shear stress induced in the cross-section of the wire is 24 MPa. For the same compressive load, if both...

The spring constant of a helical compression spring DOES NOT depend on

The deflection of a spring with 20 active turns under a load of 1000 N is 10 mm. The spring is made into two pieces each of 10 active coils and placed in parallel under the same load. The deflection of the system is

A compression spring is made of music wire of $$20$$ mm diameter having a shear strength and shear modulus of $$800$$ MPa and $$80$$ GPa respectively. The mean coil diameter is $$20$$ mm, free length is $$40$$ mm and the...

A weighing machine consists of a 2 kg pan resting on a spring in this condition, with the pan resting on the spring, the length of the spring is 200 mm. When a mass of 20 kg is placed on the pan, the length of the spring...

The figure shows arrangements of springs. They have stiff nesses $${{K_1}}$$ and $${{K_2}}$$ as marked. Which of the following arrangements offers a stiffness $$ = \,{{2{K_1}{K_2}} \over {{K_1} + 2{K_2}}}$$