What is the Approximate Torque on a Baseball Bat Held Horizontally?

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SUMMARY

The discussion focuses on calculating the approximate torque exerted on a baseball bat held horizontally, with the pivot point at the batter's hands. The correct formula for torque in this scenario is derived from the equation τ = d × F, where d represents the lever arm and F is the force due to gravity. For a uniform bat of length L and mass m, the torque is accurately calculated as (Lmg)/2, where g is the acceleration due to gravity. This conclusion clarifies common misconceptions regarding torque calculations in physics.

PREREQUISITES
  • Understanding of basic physics concepts, specifically torque and lever arms.
  • Familiarity with gravitational force calculations.
  • Knowledge of uniform mass distribution in objects.
  • Ability to manipulate algebraic equations for physics problems.
NEXT STEPS
  • Study the principles of torque in rotational dynamics.
  • Learn about the effects of different pivot points on torque calculations.
  • Explore the concept of center of mass in uniform objects.
  • Investigate real-world applications of torque in sports equipment design.
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the mechanics of sports equipment, particularly in relation to torque and force.

disque
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Homework Statement


A baseball player holds a bat at the end of the handle. If the bat is held horizontally, what is the approximate torque due to the force of gravity on the bat, with a pivot point at the batter's hands? Assume that the the bat is uniform. Use L for length of the bat, m for mass and g for acceleration due to gravity.


Homework Equations



t=d(lever arm)F

The Attempt at a Solution


I thought it was just lmg and that was wrong so I tried lm-g and that was wrong as well so I don't know what I'm doing wrong. Any help would be appreciated!
 
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I got it (lmg)/2 :)
 

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