LAB 6 - Ballistic Pendulum

PHYS 1570 – LAB 6 BALISTIC PENDULUM Name of Students 1. Jesus 2. Angel 3. Francisco _____________________________________________________________________________________ A. Projectile caught by a pendulum Table 1: Preliminary data acquisition table Mass of projectile m [kg] 0.006 Mass of pendulum M [kg] 0.25 Distance R [m] Trial number Value 1 27cm 2 27 cm 3 27 cm 4 27 cm 5 27 cm 6 27 cm Average distance R [m] 0.0272 Trial number Angular deviation θ [degree] Initial velocity v 1 [m/s] 1 39 1.088 2 39 1.088 3 39 1.078 4 39 1.078 5 39 1.097 6 39 1.088 Average v 1 39 1.086 Standard deviation σ 0 0.007

Table 2: Initial velocity of the projectile from the pendulum method. B. Projectile motion H eight of ball fr o m gro und y : _____13.2_______ m Table 3: Initial velocity of the projectile from the projectile motion method Analysis 1. Does your projectile velocity from the pendulum falls within the range of the value from the projectile motion method? 2. What is the discrepancy between the two methods? ___-0.319_______ m/s 3. What is the discrepancy between the two methods in percentage? Standard error ε 0 0.004 Trial number Shooting range x [m] Initial velocity v 2 [m/s] 1 2.275 1.386 2 2.325 1.417 3 2.31 1.407 4 2.31 1.407 5 2.32 1.414 6 2.3 1.401 Average v 2 N.A 1.405 Standard deviation σ N.A 0.005 Standard error ε N.A 0.002 ~ v   1 − ~ v   2 = No, they observe projectile velocity 1.086+-0.009 does not fall within the range from the predicted projectile motion method of 1.1.405+-0.004. however, the values are very close and have