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On the construction site for a new skyscraper, a uniform
Chapter 13, Problem 67P(choose chapter or problem)
Problem 67P
On the construction site for a new skyscraper, a uniform beam of steel is suspended from one end. If the beam swings back and forth with a period of 2.00 s, what is its length?
Questions & Answers
QUESTION:
Problem 67P
On the construction site for a new skyscraper, a uniform beam of steel is suspended from one end. If the beam swings back and forth with a period of 2.00 s, what is its length?
ANSWER:
Step 1 of 2
The moment of inertia of the beam is given by,
Here is the mass of the beam and is the length of the beam.
The time period of the physical pendulum is given by,
Here is the moment of inertia of the pendulum, is the acceleration due to gravity, is the mass of the pendulum, and is the distance from the pivot point to the centre of mass.