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A 5.0kg ball initialy at rests at the edge of 2.0m long, 1.2 m high frictionless table, A hard plastic cube of mass 0.50kg slides across the table at a speed of 26m/s and strikes the ball, causing the ball to leave the table in the direction in which the cube was moving.

It also gave us Implulse which is 12N/S

1) Determine the horrizontal velocity of the ball immediatley after the collision

2) Determine the velocity of the cube immdiately after the collision

What i did:

for the 1st question since they gave us impulse which is equal to FT=MV i basically divided the impulse by the mass to get my velocity of 2.4 m/s which i'm not sure if i did right.

for the second one, i went M1V1 + M2V2 = M1V1(prime) + M2V2(prime) and basically i solved for V2 prime and got 2.0 m/s.

Did i do them right? if not tell me what i have to do. Thanks