A 120 kg linebacker collides with (tackles) a 80 kg wide receiver in the Super Bowl. The tackle is a head collision meaning that the velocities of the two players were in opposite directions just prior to the collision. The magnitude of the linebacker's velocity just prior to the collision was 6 m/s and the magnitude of the wide receiver's velocity at the same time was 7.5 m/s. If the linebacker and wide receiver get tangled up and do not separate from one another after the nasty tackle is made, what is the velocity of the wide receiver immediately after the tackle in m/s? (hint: don't forgot to indicate direction compared to their original directio

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A: We can use the law of conservation of momentum to solve above question.

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