A girl of mass 35 kg and boy of mass 25 kg are connected by a light rope.They move horizontally in a skating rink.A second rope is attached to the girl and with this second rope,she is pulled by a force of 300 N.The magnitude of their acceleration is

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Quizplus · Accepted Answer

The total mass being pulled is the sum of the girl's and boy's masses, which is $35 \, \text{kg} + 25 \, \text{kg} = 60 \, \text{kg}$. The acceleration can be found using Newton's second law, $F = ma$, where $F = 300 \, \text{N}$ and $m = 60 \, \text{kg}$. Solving for $a$ gives $a = \frac{F}{m} = \frac{300}{60} = 5.0 \, \text{m/s}^2$.

A Girl of Mass 35 Kg and Boy of Mass