Two ice skaters stand facing each other on frictionless ice

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum

Problem

Two ice skaters stand facing each other on frictionless ice. They push off so that Skater A (mass 60 kg60\,\text{kg}) moves left at 2.0 m/s2.0\,\text{m/s} while Skater B (mass 50 kg50\,\text{kg}) moves right at 2.4 m/s2.4\,\text{m/s}. No other horizontal forces act. Treating the two skaters together as a single system, has any external impulse acted on the system during the push? Justify your answer in one sentence.

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