In a forward punch in karate, the fist begins at rest at the waist and is brought

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In a forward punch in karate, the fist begins at rest at the waist and is brought rapidly forward until the arm is fully extended. The speed v(t) of the fist is given in Figure for someone skilled in karate.

How far has the fist moved at?

(a) Time t = 50 ms and

(b) When the speed of the fist ismaximum?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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