In: Physics
Part B: Ballistic Pendulum
The questions n the very bottom is pertaining to a lab over projectile motion and its asking to use equations on the bottom to find velocity. Below are the procedures of the lab and the necessary data to find initial velocity.
Calculate the average value for the vertical distance h the pendulum-ball system has risen after the collision. This is the difference between the height of CM at its highest point and that at its lowest point.
1
Gain in Potential Energy = Loss in Kinetic Energy
Potential Energy at highest point =
Mass M of pendulum: 240 grams Mass m of ball: 64 g
Trials | 1 | 2 | 3 | 4 | Avg |
Angle of CM at its lowest point | 0o | 0o | 0o | 0o | |
Angle of CM at its highest point | 33o | 35o | 40o | 40o | |
Angle (highest - lowest) | 33o | 35o | 40o | 40o | |
Distance L from pivot to CM of pendulum | .285 meters | .284 meters |
Kinetic Energy at lowest point =
Height h from angle and L= ?
Velocity V1 of pendulum as it starts to swing=?
Velocity Vo of ball=?
Calculate the average value for the vertical distance h the pendulum-ball system has risen after the collision. This is the difference between the height of CM at its highest point and that at its lowest point.
Using Energy balance and momentum conservation equations, calculate the initial velocity V0 of the projectile.