Johnny and Francis are participating in the Roller Skating dance championship. While 73.0-kg Johnny roller skates backwards at

Question

Johnny and Francis are participating in the Roller Skating dance championship. While 73.0-kg Johnny roller skates backwards at 3.0 m/s, 57.0-kg Francis jumps into his arms with a velocity of 5.0 m/s in the same direction. How fast do they roll backwards together?

Kunduz · Accepted Answer

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