A 3.00 kg mass and a 4.00 kg mass are released simultaneously.What is the velocity of the center of mass at t = 10 s (ignore air resistance)?
A) 9.8 m/s
B) 7.0 m/s
C) 70 m/s
D) 98 m/s

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The Answer of A 3.00 kg mass and a 4.00 kg mass are released simultaneously.What is the velocity of the center of mass at t = 10 s (ignore air resistance)?
A) 9.8 m/s
B) 7.0 m/s
C) 70 m/s
D) 98 m/s

A 300 Kg Mass and a 4