How Does a Spring System Work on an Inclined Plane?

AI Thread Summary
A spring mounted at a 29-degree angle on a frictionless incline is compressed to 15 cm to propel a 4.6 kg mass. The spring constant is given as 560 N/m, and the discussion focuses on calculating the mass's velocity as it leaves the spring and the maximum distance it will travel up the incline. Key concepts include using the spring potential energy formula W=1/2kx² and applying conservation of energy principles, considering spring potential energy, kinetic energy, and gravitational potential energy. Participants emphasize the importance of establishing a coordinate system along the incline and recognizing how the incline angle affects gravitational potential energy. The discussion seeks guidance on solving these physics problems effectively.
jabbie3
Messages
19
Reaction score
0

Homework Statement



A spring is mounted at an angle of 29 degrees on a frictionless incline as illustrated in the figure below. The spring is compressed to 15 cm where it is allowed to propel a mass of 4.6 kg up the incline.

https://chip.physics.purdue.edu/protected/GiordanoMimg/chapter6/06P94.jpg

Homework Equations



All I am really aware of is W=1/2kx2

But i do not know where to go from there

The Attempt at a Solution



Idk..i really need some guidance..THANKS!
 
Physics news on Phys.org
Sorry i forgot the questions!

(a) If the spring constant is 560 N/m, how fast is the mass moving when leaves the spring?

(b) To what maximum distance from the starting point will the mass rise up the incline?
 
loosk like a good one for conservation of energy

at each point teh energy can be in 3 forms

spring potential energy, kinetic energy & gravitation potential energy

should know the formulas for each of these think about where they apply
 
i tried that and I am not getting the right answer..i figured i would have to find the velocity in x and y before i find THE velocity..but i don't know where to start with that
 
show your working then...

this should be a 1D problem, set up your coordinate system at the incline

the Grav Potential will be the only place the angle enters into
 
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...
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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...
Back
Top