In a physics lab, a 0.815-kg cart (A) moving east at 20.8 cm/s collides with a 1.16-kg cart (B) that is moving west at 42.6 cm/s. After the collision, Cart A moves west at 39.2 cm/s. Assume the system is isolated. Determine the final velocity of Cart B and the momentum after collision for cart B. Use the notation that east is the positive direction and west is the negative direction.

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.