Physics 20 – Dynamics! Please help!

I am needing assistant on my physics homework. I have received the answer of 0.6m/s2 and 0.9ms/2 for the answers but when i check my key that the answer provided it is 3.6m/s2 and when i check over the work they provided it doesn’t make sense to me at all. They got the answer of 3.6 by adding the to mass together and dividing by the force. But shouldn’t they be different for each since one person weighs more than the other?

two girls, one of mass 40kg and the other mass 60kg, are standing side by side in the middle of a frozen pond.the larger one pushes the smaller one with a force of 360N for 0.10sthe ice is virtually friction less. What is each girls acceleration?

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