Combination W-K problem with spring

  • Thread starter Thread starter itsvt2013
  • Start date Start date
  • Tags Tags
    Combination Spring
AI Thread Summary
The problem involves a 2 Kg slider A compressed against a spring (k=900) by 0.4m, which is released to slide down a 5m ramp with negligible friction. To find the velocity of the 3 Kg slider B after an elastic collision, the energy stored in the spring and kinetic energy equations are utilized. The initial velocity of slider A is calculated using the spring's potential energy, followed by determining its acceleration down the ramp. The final velocity of slider B after the collision is expected to be 8.8 m/s. The solution emphasizes the application of energy conservation and collision principles to solve the problem.
itsvt2013
Messages
7
Reaction score
0

Homework Statement



The 2 Kg slider A is held at rest against the spring k=900 compressing the spring by 0.4m. It is released and slides down the 5 m long ramp. Friction is negligible along the track. Slider A then makes an elsastic collision with the 3Kg slider B that is initially at rest. Find the velocity of slider B right after the collision.

Homework Equations



I used w-k equation then elastic collision to find V'B

The Attempt at a Solution



The answer suppose to be 8.8
 
Physics news on Phys.org
Start by using the formulas for energy stored in a spring and kinetic energy. Use these to calculate initial velocity. Then find out how much it accelerates down the ramp.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Pan suspended by a spring (Energy + SHM)
Replies
20
Views
3K
Question about springs and rotational/translational energy
Replies
4
Views
1K
Find elastic energy in the compressed spring.
Replies
12
Views
3K
Spring Problem Involving Variables and Constants Only
Replies
3
Views
1K
Time period of SHM & Energy conservation in pulley-spring-block system
Replies
24
Views
3K
Box and a Spring on on an inclined plane
Replies
11
Views
3K
Block moves down incline, hits spring, find spring constant
Replies
3
Views
3K
Multiple choice Q: Mangetic fields and Spring Constant
Replies
8
Views
2K
Problem with solving for force constant k of spring?
Replies
3
Views
2K
Spring constant of a car on springs
Replies
7
Views
7K

Hot Threads

Recent Insights

Back
Top