Abaseball of mass m1 = 0.37 kg is thrown at another ball hanging from the ceiling by a length of string l = 1.15 m. the second ball m2 = 0.71 kg is initially at rest while the baseball has an initial horizontal velocity of v1 = 2.5 m/s. after the collision the first baseball falls straight down (no horizontal velocity.)

randomized variables
m1 = 0.37 kg
m2 = 0.71 kg
l = 1.15 m
v1 = 2.5 m/s