In building a house, carpenters use nails from a large box. The box is suspended from a spring twice during the day to measure the usage of nails. At the beginning of the day, the spring stretches 50 cm. At the end of the day, the spring stretches 30 cm. What percentage of the nails have been used?
When an 80.0-kg man stands on a pogo stick, the spring is compressed 0.120 m. What is the force constant of the spring?
A set of scales obeys Hooke’s law. The scales are depressed 0.75 cm by a load of 120 kg.
What is the force constant of the scales?
When someone stands on the scales a depression of 0.48 cm is measured. What is the person’s mass?
Two identical springs, each with the spring constant 20 N/m, support a 15.0-N weight, as shown.
What is the tension in spring ?
What is the amount of stretch of spring from the rest position?
An object of mass 7.60 kg hangs from a spring that has a force constant of 425 N/m. Find the displacement of the lower end of the spring from its equilibrium position.