Spring Constant, Length; Work Done by Gravity and Compression
Not what you're looking for?
One safety mechanism used in elevators consists of a giant spring located at the bottom of the elevator shaft. In one particular shaft, the spring has a spring constant of 8.00x10^4 N/m, and the elevator car weighs 8250 N.
a. Exactly 28.0 m above the spring, the resting elevator's cable snaps and the car falls to the bottom of the shaft. How fast is the elevator travelling when it first touches the spring?
b. If the spring starts out with a length of 3.00 m, how long is it at the moment the car stops?
c. Calculate the work done on the elevator (1) by gravity, up to the point the elevator first touches the spring; and (2) by the compression of the spring.
Purchase this Solution
Solution Summary
The solution provides elevator calculations including the spring constant, length; work done by gravity and compression.
Purchase this Solution
Free BrainMass Quizzes
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
The Moon
Test your knowledge of moon phases and movement.
Basic Physics
This quiz will test your knowledge about basic Physics.
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.