Answer 2_2_1

Left hand diagram

Resultant velocity: v² = 6² + 12² = 36 + 144 = 180 m²/s²

=> v = 13.4 m/s

Right hand diagram:

Resultant momentum: p² = 12² + 24² = 144 + 576 = 720 kg² m²/s²

p =  26.8 kg m/s

   Make sure that you remember to square root to get your answer.  This is a common bear trap.

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