Babe Ruth steps to the plate and casually points to left centerfield to indicate

Question

Babe Ruth steps to the plate and casually points to left centerfield to indicate the location of his next home run. The mightyBabe holds his bat across his shoulder with one hand holding thesmall end of the bat. The bat is horizontal, and the distance fromthe small end of the bat to the shoulder is 22. 5 cm. If the bathas a mass of 1.10 kg and has a center of mass that is 67.0 cm fromthe small end of the bat, find the magnitude and direction of theforce exerted by (a) the hand and(b) the shoulder.

Explanation / Answer

given that m = 1.10k distance from the small end of the bat to the shoulder is 22. 5cm enter of mass that is 67.0 cm a) place the center of rotation at the shoulder the yaxis is directed upward = 22.5cm Fh - ( 67.0cm - 22.5cm )1.10kg * 9.8m/s2 = 0 Fh = 21.3N Fh = (-21.3N)y^ b) Fy = - Fh + Fs -mg Fs = Fh + mg plugging values Fs = 32.1 Ny^

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