Two physical quantities need to be measured in this experiment – Angle and Length (Range). Make the following table –
| Sl No. | Physical Quantity | Measured With | Least Count |
|---|
| 1 | Length | | |
| 2 | Time | |
- Fix the projectile launcher firmly to the side of a table.
- Push the projectile into the launcher 1 . Fix the angle to be zero.
- Measure the height H of the projectile from the ground.
- Launch the projectile with θ=0 and measure the range. To measure the range, put a carbon paper on a white paper and allow the projectile to land on it. At the impact point a mark can be seen on the white paper.
Using the value of H and the range obtained with θ=0, calculate the initial speed vo. Use the equations for x and y.
- Now measure the range for different angles – 15° , 30° ,45° , 60° and 75° .
Observe carefully, there are three positions in which the projectile can be fixed. Each position gives different initial speed to the projectile.
H =
R0 = _____ (Range with θ = 0)
Calculate
- Time of flight =
| Sl No. | θ (in deg) |
Range (cm) |
Expected range(cm) |
Difference(cm) |
| 1 | | | | |
| 2 | | | | |
| 3 | | | | |
| 4 | | | | |
| 5 | | | | |