Coefficient of rotation friction

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SUMMARY

The discussion focuses on determining the coefficient of rotation friction for a bowling ball on a lane, specifically in relation to how it affects the ball's curving motion. To find this coefficient, one must measure the frictional force acting on the ball by calculating the distance it travels before stopping, which relates to the initial kinetic energy of the ball. The coefficient is defined as the ratio of the frictional force to the weight of the ball, taking into account both translational and rotational kinetic energy. A participant expressed skepticism about the feasibility of measuring this coefficient through the proposed method, indicating the complexity of the interaction between the ball and the lane.

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  • Understanding of kinetic energy concepts, particularly in relation to rotational motion.
  • Familiarity with basic physics principles, including friction and force measurements.
  • Knowledge of experimental design and data collection methods.
  • Ability to perform calculations involving ratios and forces.
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  • Research methods for measuring frictional force in rotating objects.
  • Explore the principles of translational and rotational kinetic energy in physics.
  • Investigate advanced techniques for analyzing motion in sports physics.
  • Learn about the impact of surface materials on friction coefficients in bowling.
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Students conducting research in physics, particularly those focused on sports science, as well as educators and enthusiasts interested in the mechanics of bowling and frictional forces.

blanc4peace
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I am a student and i am doing extended essay on bowling. My topic is to investigate the relation between friction and the direction of ball curving (hook ball). On conducting the experiment, I face a problem on finding the coefficient of friction between rotating bowling ball and bowling lane. How to find the coefficient of rotation friction?
 
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You could measure the magnitude of the frictional force acting on the ball by determining the distance it takes to come to a halt. That is the work done by the frictional force is then equal to the initial kinetic energy of the ball. This means that you need to measure the initial speed of the ball (the distance is then also measured from this point). The coefficient is then the ratio of this force and the weight of the ball. Remember that the ball has both translational and rotational kinetic energy that is removed by the frictional force.
 
Last edited:
adnrevdh, i do not think your method is feasible... the bowling ball does not come to a stop because of the friction force.
 

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