Physics, 09.03.2021 22:50 sgslayerkingminecraf

A karate student trying to break bricks in half is wondering if it would be more effective to strike these bricks and stop her hand at the top surface of the blocks, or to let her hand bounce after she strikes. How would you advise her, using physics?
Stop hand or bound?
Why?

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A karate student trying to break bricks in half is wondering if it would be more effective to strike...