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. The vertical scaling is set by vs 8.0 m/s. How far has the fist moved at
(a) Time t = 50 ms and
(b) When the speed of the fist ismaximum?
50 100 140 I (ms) v (m/s)
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Fundamentals of Physics

ISBN: 978-0470469118

9th Edition

Authors: Jearl Walker, Halliday Resnick

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