Practice Equation of Motion for Free Vibration - 7.3 | 7. Free Vibration of Single Degree of Freedom (SDOF) System | Earthquake Engineering - Vol 1
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Equation of Motion for Free Vibration

7.3 - Equation of Motion for Free Vibration

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does m represent in the equation of motion?

💡 Hint: Think about what you are trying to model in a physical system.

Question 2 Easy

What is the relationship between mass and natural frequency?

💡 Hint: Consider how heavy objects move compared to lighter ones.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the equation of motion for an undamped SDOF system?

mx¨(t) + kx(t) = 0
mx¨(t) - kx(t) = 0
kx(t) = 0

💡 Hint: Remember, it describes mass and stiffness acting on displacement.

Question 2

True or False: Increasing mass will increase the natural frequency of a system.

True
False

💡 Hint: Think about how heavier masses respond compared to lighter ones.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A system has a mass of 10 kg and a spring constant of 400 N/m. Calculate the natural frequency and time period.

💡 Hint: Use the respective formulas for ω and T.

Challenge 2 Hard

If the damping coefficient is introduced into the equation mx¨(t) + cx˙(t) + kx(t) = 0, describe how it changes the dynamic response.

💡 Hint: Think about what happens when friction is introduced to the system.

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