1. A 125-gram projectile strikes a 1.45 kg block that's attached to a massless vertical pole & becomes embedded in the block causing the bullet & block to swing upward. The overall length of the pole & the block combined is 1.1m. The bullet & block at the highest point makes a 45 degree angle with the original vertical position. What was the intial velocity of the bullet before striking the block?

Question

1.  A 125-gram projectile strikes a 1.45 kg block that's attached to a massless vertical pole & becomes embedded in the block causing the bullet & block to swing upward. The overall length of the pole & the block combined is 1.1m. The bullet & block at the highest point makes a 45 degree angle with the original vertical position. What was the intial velocity of the bullet before striking the block?