The velocities of pellets fired by two different airgun models were measured by using a ballistic... more The velocities of pellets fired by two different airgun models were measured by using a ballistic pendulum. The pellets were fired into a spherical ball of modelling clay of known mass suspended from a string. The maximum height reached by the modelling clay ball with the pellet embedded in it were measured using TRACKER software by analysing the videos of the motion of the ballistic pendulum. The velocity of pellet calculated using the maximum height attained by the ballistic pendulum was verified by using it to calculate the maximum velocity of ballistic pendulum and comparing it with the actual maximum velocity of the ballistic pendulum measured directly using TRACKER. The velocity of the pellet was also calculated from the slope of the plot of maximum height attained by ballistic pendulum, h vs 1/(1+M/m)^2 , where m is mass of pellet and M is mass of the lump of clay used as the ballistic pendulum. The airgun A was found to be of poor quality and generated erratic velocities in terms of both magnitude and direction. Airgun B on the other hand was much more accurate and generated velocities of 47 ms-1 ± 5 ms-1 consistently.
The velocities of pellets fired by two different airgun models were measured by using a ballistic... more The velocities of pellets fired by two different airgun models were measured by using a ballistic pendulum. The pellets were fired into a spherical ball of modelling clay of known mass suspended from a string. The maximum height reached by the modelling clay ball with the pellet embedded in it were measured using TRACKER software by analysing the videos of the motion of the ballistic pendulum. The velocity of pellet calculated using the maximum height attained by the ballistic pendulum was verified by using it to calculate the maximum velocity of ballistic pendulum and comparing it with the actual maximum velocity of the ballistic pendulum measured directly using TRACKER. The velocity of the pellet was also calculated from the slope of the plot of maximum height attained by ballistic pendulum, h vs 1/(1+M/m)^2 , where m is mass of pellet and M is mass of the lump of clay used as the ballistic pendulum. The airgun A was found to be of poor quality and generated erratic velocities in terms of both magnitude and direction. Airgun B on the other hand was much more accurate and generated velocities of 47 ms-1 ± 5 ms-1 consistently.
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