devinm9099
01.06.2021 •
Physics
A 5 kg mass compresses a horizontal spring by .06 meters. The spring has a spring constant of 2 N/m. If the surface is frictionless, find the velocity of the mass when the spring is released.
Solved
Show answers
More tips
- H Health and Medicine How to Improve Your Posture?...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Physics
- H Health How do people get over a fear of physical touch (aphenphosmphobia)...
- M Mathematics Tien bought 12 books.two thirds of the books are science fiction.how many of the books are science fiction...
- W World Languages Help me plsSubject :- Science...
- S Social Studies Latitude lines run east to west around the globe. You can remember it this way: Latitude lines are flat Latitude lines run east to west, but they actually give us a location...
Ответ:
Explanation:
The frictionless surface implies that the speed of the spring is at a max. When the speed of the spring is at its max, the potential energy in the spring is 0. Use the equation for the Total Energy in a Spring/Mass System:
KE + PE = where KE is the Kinetic Energy available to the spring, PE is the potential energy available to the spring, and the sum of those is equal to one-half times the spring constant, k, times the amplitude of the spring's movement away from the equilibrium position. Sometimes this amplitude is the same as the displacement of the spring. This can be tricky. But since we are only given one value for the distance, we are going to use it as an amplitude. Keeping in mind that the PE is 0 when KE is at its max, then the equation becomes
KE + 0 = or to put it simpler terms:
KE = We need to find the value for KE before we can fully solve the problem we are being tasked with.
Filling in using the info given:
Notice I added another place of significance to the 2 because 1 simply isn't enough and the physics teacher in me can't handle that. Simplifying a bit:
because the k = 2 cancels out the 2 in the denominator of the 1/2. So
KE = 3.6 ×
Now plug that in for KE and solve for v:
KE = :
and
gives us a velocity of
v=
Ответ:
D. Pure Communism
Explanation:
i got it wrong the first time