Ugh i suck at this and need your help

  • Thread starter Thread starter physicsismylife
  • Start date Start date
AI Thread Summary
To find the acceleration due to gravity (g) using the formula T = 2π√(L/g), it must be rearranged correctly. The correct rearrangement is g = (4π²L) / T². The initial attempt g² = 2πL / T was incorrect, as it failed to properly account for squaring the 2π term. The discussion emphasizes the importance of applying mathematical operations consistently on both sides of the equation. Understanding these algebraic manipulations is crucial for accurately determining g in the pendulum experiment.
physicsismylife
I am doing a lab on finding g using a simple pendulum experiment.

the formula is:

T = 2pi sqrt(L/g)

how is that rearranged to find g?

I got g^2=2piL / T


is that right? thanks
 
Physics news on Phys.org
g = ((L)/((T)/(2pi))^2)
 
PIML,

You forgot to square the 2*pi
 
Just do the same things on each side.

e.g. if a = 1/b, then multiplying on both sides by b gives

ab = b/b = 1

ab = 1.

Similar for multiplication and to invert square root, simply square both sides.
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

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...
View full post »

Similar threads

The period of a simple pendulum
Replies
20
Views
2K
Differential Equation of a Pendulum
Replies
32
Views
2K
For a Pendulum: Knowing Acceleration Find Maximum Angle
Replies
26
Views
3K
Ball launched from a height of 5 meters --- Projectile motion
Replies
12
Views
1K
Does change in 'g' affect frequency of mass spring system?
Replies
4
Views
3K
Find the height of a lamp based on the velocities of projectiles
Replies
40
Views
2K
JEE solution wrong? (tempco of a clock)
Replies
14
Views
1K
Foucault Pendulum at the North Pole
Replies
9
Views
2K
Find temperature of a U-shaped Tube
Replies
9
Views
777
How to parametrize motion of a pendulum in terms of Cartesian coordinates?
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top