n vottball,the pitcher throws under hand With the arm qullyatended (Straight at the elbun). In agastpitch the bal, 07 mass m -0-134 kg, leaves the nand at aspeed 07 139 kml h,nhen The arm isfointed verticaiy dunnnard.Part A:Find the rotational kineticenergt,in joules,07hePItcher is arm ball system, given that the armis moment Ainertia1s0.75 kq°m and the ball reaver the hand at a distance o7 OoLosmArom the PiVot.KErotこ?PartB: What 7orce, in newtons,do The muCies exert to cause thearm to rotate, assuming the torce is constant and 15 epectiveperpendicular lever arm is Bo2 cm? ASsume also that thepitchersarm starts extended nor12antalybehind her at rest and the ball isreleascd at the bottom 07 the swing j as descYibed in part (a).Approximate the arm as a uni7orm rod.F=?

Answered: Image /qna-images/answer/fcc0460e-4d7d-45e2-9ca7-3419ad681d0b.jpg

Answered: Insottball,the pitcher thYO WS under…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section: Chapter Questions

Problem 92A

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