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12. A boy pulls a sled with a force of 21 N for 30 m. How much
work did he d
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3. A girl lifts weights with a force of 350 N a distance of 2 m.
How much work did she do?

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225