Help rearranging this equation.

  • Thread starter Thread starter dwartenb89
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on rearranging the equation for the period of a swinging beam, specifically T=2π√(L/g)(√2/3), to solve for the length (L) of the beam. The user initially attempted to rearrange the equation and arrived at L=√[g*(T/(2π√(2/3)))]. However, a simpler method suggested involves squaring both sides of the original equation to isolate L more effectively. This approach allows for direct substitution of known values to calculate the beam's length.

PREREQUISITES
  • Understanding of basic physics concepts, particularly pendulum motion.
  • Familiarity with algebraic manipulation and rearranging equations.
  • Knowledge of the gravitational constant (g) and its application in physics.
  • Experience with trigonometric functions and their properties.
NEXT STEPS
  • Learn how to derive the period of a pendulum from first principles.
  • Study the effects of varying gravitational acceleration on pendulum length calculations.
  • Explore advanced topics in harmonic motion and their real-world applications.
  • Practice solving similar equations involving trigonometric functions and physical constants.
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and oscillatory motion, as well as educators looking for examples of equation manipulation in physics problems.

dwartenb89
Messages
1
Reaction score
0

Homework Statement


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 5.00 , what is its length?

I know the equation I need to use but I'm having trouble rearranging it to solve for Length (L).



Homework Equations


T=2pi*sqrt(L/g)*(sqrt2/3)


The Attempt at a Solution


I tried to rearrange the equation to solve for L and got this.
L=sqrt[g*(T/(2pi*sqrt(2/3)))]

any help would be great!
 
Physics news on Phys.org
Welcome to PF.

Why not simply square both sides of the original?

You know all the other values. Plug them in.
 

Similar threads

  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 32 ·
2
Replies
32
Views
3K
Replies
17
Views
1K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
7K
  • · Replies 6 ·
Replies
6
Views
2K