Analyzing Motion of Mechanical System with Initial Conditions

AI Thread Summary
The discussion focuses on determining the motion equations for a mechanical system with two variables, y1(t) and y2(t), given specific initial conditions. The initial conditions include y1(0) = 1, y2(0) = 2, and their respective derivatives. The system consists of ideal springs and point masses, with the constraint that the masses cannot collide. Gravity influences the system but is not considered in the calculations. Participants are encouraged to share their work or equations to facilitate assistance.
official
Messages
3
Reaction score
0
Determine the motion of this mechanical system-
*Pic attached*

satisfying the initial conditions :-
y1(0) = 1
y2(0) = 2
y1'(0) = -2*sqrt(6)
y2'(0) = sqrt(6)

I need to find equations for y1(t) and y2(t). Please help :D

PS ideal springs, point masses cannot collide, y1 and y2 are the distances of the bottom end of the springs from the top, so that the length of the second spring is y2-y1. As for gravitational effects, gravity pulls on the weights to start the springs moving, but you don't need to deal with gravity in your calculations.
 

Attachments

  • Spring.png
    Spring.png
    744 bytes · Views: 390
Last edited:
Physics news on Phys.org
Can anyone help?
 
Can anyone help?
 
No one helps maybe because you did not show us your work so far, equations you know etc.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top