- Messages
- 1,660
- Reaction score
- 11,026
- Points
- 523
cos18=h/61.ok just see at first when the pendulum didnot swing the initail height was 18.but when it started swinging it gain an height and u need to find the difference in height.hope i made u clearThank you for your reply..
This is where I'm stuck.. how did you get 61cos18??