- #1
skylarr
- 1
- 0
ok i had to build a trebuchet for high school and i can't seem to get a decent value for the initial velocity please help. i used a 60 pound counter weight (27.2 kg) a tennis ball to launch (.057 kg) and the counter weight drops about 1.3 m when it is launched i used the equation mgh = 1/2 mv ^2, but i got 110 m/s pleas help this is due tommmorow.
thanks
thanks