Damped Oscillations: Does Time Change?

AI Thread Summary
In damped oscillations, the time for one complete oscillation remains constant, provided that the damping coefficient (γ) and the natural frequency (ω0) are time-independent. The differential equation governing damped oscillations confirms this, as the relationship between angular frequency and the period does not change over time. Therefore, the period of oscillation is not affected by the damping process itself. This conclusion is derived from solving the relevant equations. Overall, the period remains independent of time during damped oscillations.
amit25
Messages
28
Reaction score
0

Homework Statement



Does the time for one oscillation, change during the damped oscillations? and please explain

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
Hi amit25. The differential equation for damped oscillations is:
\ddot{x}+\gamma\dot{x}+\omega_0^2x=0​
If you solve for the angular frequency of this system and substitute a relationship between the angular frequency and the period of one oscillation. Is this relationship time dependent or independent? That should give you your answer.
 
so time is independent
 
amit25 said:
so time is independent
The period for one oscillation is independent of the time (as long as γ and ω0 are time independent) if you work out an equation for it.
 
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