Maximizing Distance and Angular Velocity: Solving a Billiard Ball Problem

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SUMMARY

The discussion focuses on solving a physics problem involving a billiard ball struck by a cue, analyzing its distance traveled before rolling without slipping and its angular velocity at that point. Key parameters include the initial velocity (v0), radius (R), mass (m), gravitational acceleration (g), and the coefficient of kinetic friction (µk). The solution requires applying Newton's 2nd law to both translational and rotational motion, emphasizing the relationship between angular speed and translational speed as the ball transitions from slipping to rolling.

PREREQUISITES
  • Understanding of Newton's 2nd law of motion
  • Familiarity with concepts of translational and rotational motion
  • Knowledge of friction and its effects on motion
  • Basic calculus for solving motion equations
NEXT STEPS
  • Study the conditions for rolling without slipping in physics
  • Learn about the relationship between angular velocity and linear velocity
  • Explore the effects of kinetic friction on motion dynamics
  • Review calculus applications in solving motion problems
USEFUL FOR

Students studying physics, particularly those focusing on mechanics, as well as educators and tutors looking for problem-solving strategies in dynamics involving rotational motion.

Nanoath
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Homework Statement



A billiard ball is struck by a cue as is shown in the figure. The line of action of the applied impulse is horizontal and passes through the center of the ball. The initial velocity v0 of the ball after impact, its radius R, its mass m, the acceleration due to gravity g, and the coefficient of kinetic friction µk between the ball and the table are all known.
a) How far will the ball move before it ceases to slip on the table and starts to roll?
b) What will its angular velocity be at this point?

Homework Equations


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The Attempt at a Solution



I need help getting started, this problem is driving me nuts.
We are looking for distance X between the points where the ball is not rotating and where it starts to rotate due to friction force. If I'm correct, initially the angular velocity is 0, but at the point where it starts moving it becomes greater than 0. The velocity of the ball is highest at V0.
meeh... I'm not sure how to prove that with calculus -_-
 
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Apply Newton's 2nd law to both translational and rotational motion of the ball due to the friction force. Hint: The angular speed increases as translational speed decreases. Solve for the point where it rolls without slipping. (What's the condition for rolling without slipping?)
 
Thanks, trying it out now :D
 

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