1. ## Graphing Pendulum

Hi, I need help on 3 questions that will be given in the attachment with the equation. It is about pendulums, look at the attachment for all the information. Please help and thanks in advance

2. ## Re: Graphing Pendulum

For part (d), you're given the time, and you want to find the length, so plug in 10 for T:
$\displaystyle 10 = 2\pi \sqrt{\frac{L}{9.8}}$
Divide both sides by 2π, square both sides, and multiply both sides by 9.8 to find L.

For part (e), is the weight of the pendulum mentioned anywhere in the equation? What does that tell you?

3. ## Re: Graphing Pendulum

For part (c) how would I graph this, would I just move it up 20 on the y-axis?

Originally Posted by eumyang
For part (e), is the weight of the pendulum mentioned anywhere in the equation? What does that tell you?
Also for part (e) I figured out that it would be double the effect of T, causing it to be slower

4. ## Re: Graphing Pendulum

Originally Posted by dan713
Also for part (e) I figured out that it would be double the effect of T, causing it to be slower
... doubling the weight has no effect on the period of motion.

Pendulum