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a. Estimate the force with which a karat...

a. Estimate the force with which a karate master strikes a board, assuming the hand's speed at the moment of impact is `10.0ms^(-1)`, decreasing to `1.00ms^(-1)` during a `0.002 s` time internal of contact between te hand and the board. The mass of his and and arm is `1.00 kg` . b Estimate the shear, assuming this force it exerted on a `1.00 cm` thick pine board that is `10.0 m` wide. c. If we maximum shear stress a pine board can support before breaking is `3.60xx10^(6)N//m^(2)`, will the board break?

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