Popeye,of mass 70 kg,has just downed a can of spinach.He accelerates quickly and stops Bluto,of mass 700 kg (Bluto is very dense) ,who is charging in at 10 m/s.What was Popeye's speed?
A) 10 m/s
B) 31 m/s
C) 50 m/s
D) 100 m/s
Correct Answer:
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