What is the ideal speed for a car to take a 55-m-circular radius curve that is banked at a angle?
Railroad tracks follow a circular curve of radius 500.0 m and are banked at an angle of . For trains of what speed are these tracks designed?
A body with a mass of 0.17 kg is attached to a massless vertical spring with an equilibrium length of 2.1 cm. The body extends the spring by 2.6 cm. The body and the spring are then placed on a frictionless horizontal surface and the spring returns to its equilibrium length. The end of the spring not touching the body is fixed and the spring plus the body are rotated steadily about this point at 2.4 rev/s. How much does the spring extend during this rotation? Assume that the mass of the spring is negligible.