An 8.52g bullet is fired into a 385g block that is initially at rest at the edge of a table of h = 1.03 m height. The bullet remains in the block, and after the impact the block lands d = 2.15 m from the bottom of the table. How much time does it take the block to reach the ground once it flies off the edge of the table? What is the initial horizontal velocity of the block as it flies off the table? (assume this to be in the positive direction)
Determine the initial speed of the bullet.
The Attempt at a Solution
The velocity of the red card (the one moving) is 0 m/s, and the velocity of e blue cart just after collision is 3.13 m/s. But I don't know how to go about determining the initial speed of the bullet.