Vertical Oscillation assuming no damping

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SUMMARY

The discussion focuses on calculating the frequency of vertical oscillation for a system comprising an 85-kg person and a 300-kg experimental car, which sinks 4.5 cm into its springs. The relevant equations include ω=√(k/m) and ω=2πf, where k represents the spring constant and m the total mass. The amplitude of oscillation is determined to be 4.5 cm, and the relationship between the mass and the spring's stiffness is crucial for solving the problem. The discussion emphasizes the need to derive the spring constant from the given parameters to find the oscillation frequency.

PREREQUISITES
  • Understanding of harmonic motion and oscillation principles
  • Familiarity with spring constants and Hooke's Law
  • Basic knowledge of angular frequency and its relationship to frequency
  • Ability to manipulate algebraic equations for solving physics problems
NEXT STEPS
  • Calculate the spring constant (k) using the formula k = F/x, where F is the weight of the person and x is the displacement
  • Learn about the relationship between mass and frequency in oscillatory systems
  • Explore the effects of damping on oscillation frequency in real-world scenarios
  • Investigate the principles of simple harmonic motion and its applications in engineering
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Students studying physics, particularly those focusing on mechanics and oscillatory motion, as well as engineers working on systems involving springs and vibrations.

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Homework Statement


An 85-kg person steps into an experimental car of mass 300 kg, causing it to sink 4.5 cm on its springs. If started into vertical oscillation, and assuming no damping, at what frequency will the car and passenger vibrate on these springs.


Homework Equations


ω=√k/m
ω=2πf
x(t)=Acos(ωt)

The Attempt at a Solution


I thought 4.5 would be the amplitude of the oscillation but then I had 3 unknowns, the distance traveled, omega, and the time. Then I thought it may be the distance traveled and the amplitude would be 4.5/2 but I ended up stuck again.
 
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The amount of sink and the mass of the person are related via the stiffness of the springs.
 

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