Maximizing Displacement on an Incline for a Mass Attached to a Spring

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SUMMARY

The discussion focuses on calculating the maximum displacement of a mass attached to a spring on an incline, characterized by a spring constant k and an angle α. The mass is initially stretched a distance ℓ from its equilibrium position and released, with negligible friction considered. The key equations involve the spring force F(x) = -kx and the gravitational force component acting along the incline, leading to the conclusion that the spring force will initially dominate until the mass moves up the incline, where gravity will eventually prevail.

PREREQUISITES
  • Understanding of Hooke's Law and spring constants (k)
  • Knowledge of basic mechanics, specifically forces on inclined planes
  • Familiarity with Newton's second law (F = ma)
  • Concept of gravitational force components on an incline
NEXT STEPS
  • Study the dynamics of spring-mass systems on inclined planes
  • Learn about energy conservation principles in mechanical systems
  • Explore the effects of friction on spring dynamics
  • Investigate advanced topics in oscillatory motion and damping
USEFUL FOR

Students in introductory physics courses, educators teaching mechanics, and anyone interested in the dynamics of spring systems on inclines.

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Homework Statement



The mass m is attached to a spring with spring constant k, on incline which forms
the angle α to the horizontal. The mass is stretched into the distance ℓ from the equilibrium position
the spring and kept there. How far up the incline can the mass go after
it is released, if friction is negligible?

spring.jpg

Homework Equations


The Attempt at a Solution

 
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What have you tried so far?

You must show your own attempt at the problem if you want to get help here. Please see point 1 in the below post:

https://www.physicsforums.com/showthread.php?t=94380

Also, problems like this should be posted in the Introductory Physics subforum. Advanced physics is reserved for upper level undergraduate and graduate level problems.
 
start with setting up all the forces working just as you release the spring. At first, the spring force F(x)=-kx, (x in the direction of the plane) will be greater than the projection of gravity, but as x gets smaller, gravity will win (or even the spring might contract and push back).

X-direction:
F = ma= -m*g*cos(theta) - k(-x)

agree so far?
 

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