Babe Ruth steps to the plate and casually points to left center field to indicat

Question

Babe Ruth steps to the plate and casually points to left center field to indicate the location of his next home run. The mighty Babe holds his bat across his shoulder, with one hand holding the small end of the bat. The bat is horizontal, and the distance from the small end of the bat to the shoulder is 24.5 cm . The bat has a mass of 1.10 kg and has a center of mass that is 65.0 cm from the small end of the bat.

Part A

Find the magnitude of the force exerted by the hand?

Part B

Find the direction of the force exerted by the hand.

Part C

Find the magnitude of the force exerted by the shoulder.

Part D

Find the direction of the force exerted by the shoulder.

Explanation / Answer

D) force exerted be shoulder is upwards

about shoulder

torque by mg = torque by hand

mg(65-24.5) *10^-2 = ForceByHand *24.5 *10^-2

ForceByHand = 18.1836734694 N

in downword direction

force by shoulder = mg + ForceByHand

=1.1 * 10 +18.1836734694

=29.1836734694 N upwards

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