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Toke

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## Homework Statement

Q: A boy falls with the acceleration 4g in a free fall until he hits a net. His mass is 78kg. You can ignore other forces. With what force does he influence the net?

## Homework Equations

F=m*a

## The Attempt at a Solution

I use the formula F=m*a which gives med 78kg*4*(9.82m/s

^{2})=3,1kN. My teacher did though tell me that the answer were 3,9kN, but i can't figure out what formula to use then. What have i missed?