Bullet & Blocks Homework: Find Speed & Initial Velocity

[CaptFormal]

Homework Statement

A bullet with a mass of 6.30 g is fired horizontally at two blocks resting on a smooth and frictionless table top as shown in the Figure. The bullet passes through the first 1.95 kg block, and embeds itself in a second 2.00 kg block. Speeds v1 = 2.50 m/s and v2 = 3.40 m/s, are thereby imparted on the blocks. The mass removed from the first block by the bullet can be neglected.

http://schubert.tmcc.edu/enc/52/dd6bf672adc24a4765c80edfbd6c58eef5fed43eb7357dd78b9e5440a5cd9c4315c609dae4356fa25a8a334e8fe916318f04566d488669a1cea623da623657cefbb5dcd1e74485c6.gif

(a) Find the speed of the bullet immediately after emerging from the first block.

(b) Find the initial speed of the bullet.

Homework Equations

The Attempt at a Solution

Not sure how to even start on this one. Any help will be appreciated. Thanks.

 

[Kurdt]

You will have to consider the conservation of momentum.