An initially stationary device lying on a frictionless floor explodes into two pieces, which then slide across the floor. One piece slides in the positive direction of an x axis.

1. The second piece also moves along the +x axis.
2. The second piece also moves along the +y axis.
3. The second piece also moves at 30^o with respect the +x axis.
4. The second piece also moves along the -x axis.