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A 8.30 long elastic band is used to launch a toy glider. Once stretched to a...

A 8.30 long elastic band is used to launch a toy glider. Once stretched to a length of 30.0 m, the band releases 1.00 J of elastic potential energy when you let it contract 0.0895 m. What forward force is the band exerting on the toy glider?
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