Need help for question about spring oscillation

In summary, the question is asking for an explanation of why the answer to a problem is C instead of B. The relevant equation is F=kx and the discussion involves the use of a force diagram and considering the net force on a block. The argument presented explains how energy dissipation prevents sustained oscillations.
  • #1
JJ1122
2
0

Homework Statement


I want to know why the answer is C not B. Thanks.

Homework Equations


F=kx

The Attempt at a Solution

 

Attachments

  • 照片.JPG
    照片.JPG
    25.1 KB · Views: 472
Physics news on Phys.org
  • #2
JJ1122 said:
. Homework Statement
I want to know why the answer is C not B. Thanks.

Homework Equations


F=kx

1. the force will be -kx , as spring opposes the displacement
draw the force diagram on the block and see what is the net force on the block-ask yourself can it support oscillations of the block or not ?
 
  • #3
@drvrm Thanks.
 
  • #4
JJ1122 said:
@drvrm Thanks.

but you should give complete argument;
1. initially a displacement say y in the vertical direction will lead to two forces- compression of upper spring will give -ky down ward and extension of lower one will give -ky down ward, as there is significant friction F(friction) will oppose the motion of the mass -pointing up if movement is downward-
after reaching the rest position the energy of the mass will move further down and spring forces will point up but the friction will oppose the motion . so a cycle of oscillation can not be sustained mainly due to energy dissipation .
 

FAQ: Need help for question about spring oscillation

1. What is spring oscillation?

Spring oscillation is the back and forth motion of a spring when it is either stretched or compressed from its original position.

2. What factors affect the frequency of spring oscillation?

The frequency of spring oscillation is affected by the mass of the object attached to the spring, the stiffness of the spring, and the amplitude of the oscillation.

3. How do you calculate the period of spring oscillation?

The period of spring oscillation can be calculated by using the formula T = 2π√(m/k), where T is the period, m is the mass attached to the spring, and k is the spring constant.

4. What is the relationship between spring stiffness and oscillation frequency?

The spring stiffness and oscillation frequency have an inverse relationship, meaning that as the stiffness of the spring increases, the frequency of oscillation decreases, and vice versa.

5. How does damping affect spring oscillation?

Damping in spring oscillation refers to the dissipation of energy due to external forces, such as friction. Damping can decrease the amplitude of the oscillation and change the frequency of the oscillation.

Similar threads

Rotating simple harmonic oscillator
Replies
11
Views
630
Spring with mass hangs from the ceiling
Replies
22
Views
958
Comparing SHM of Two Identical Masses on Springs
Replies
2
Views
1K
Estimating damped harmonic oscillator parameters from this plot of the oscillations
Replies
9
Views
677
Finding the time period of this System
Replies
14
Views
2K
What is the Period of Oscillation for a Spring Cut to One-Third Its Length?
Replies
3
Views
937
Collisions in a harmonic oscillator
Replies
18
Views
3K
Two spring-coupled masses in an electric field (one of the masses is charged)
Replies
1
Views
446
Does amplitude depend on mass in SHM?
Replies
1
Views
7K
What Is the Spring Constant in This Simple Harmonic Motion Problem?
Replies
2
Views
6K

Hot Threads

Recent Insights

Back
Top