Dorian Gray
Junior Member
- Joined
- Jan 20, 2012
- Messages
- 143
Greetings math adorers! I was wondering if somebody could please check my work for the problem below. A pendulum with a length 2m has a velocity of 3 m/s at its lowest point. What is the largest angle it creates relative to the horizontal as it swings. Hint: use energy conservation. Here is my work mgh=mv^2/2,,,,,,,,,,h=0.459 m,,,,,,,,,cos(angle) = h/r=0.459/2,,,,,,,,,,,angle=76.7 degree Please let me know if it is correct. If it is wrong, please give suggestions on how I should correct. Thanks! |