1. A 2 kg block of upsidaisium ore at rest on a horizontal surface suddenly explodes into two fragments, one 2.7 times h

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1. A 2 kg block of upsidaisium ore at rest on a horizontalsurface suddenly explodes into two fragments, one 2.7 times heavierthan the other. The heavier fragment slides 2.7 m along thehorizontal surface before stopping. What distance (in m) does thelighter fragment slide? Assume that both fragments have the samecoefficient of kinetic friction with the surface.
2. Block A is sliding across a horizontal surface towardblock B, which is initially at rest. The mass of block A is 2.1 kg,the mass of block B is 4.6 kg, and the initial speed of block A is4.1 m/s. After colliding with block B, block A is at rest. What isthe speed (in m/s) of block B after the collision?