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Answer to Question #1064 in Mechanics | Relativity for Charlie

Question #1064
A 60 kg boy and a 40 kg girl decide to play "tug of war" on a frictionless surface. In the process, the girl accelerated toward the boy at 3.0 m/sec^2. What is the acceleration of the boy toward the girl?
Expert's answer
The forces applied to each kid are equal:
F = F;
m1a1 = m2a2;
Thus:
a2 = m1/m2 a1 = 40*3 / 60 = 2 m/s2

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