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Example 19.8<br />
The 5-kg slender rod is suspended from the pin at A.<br />
If a 1-kg ball B is thrown at the rod and strikes its<br />
center with a horizontal velocity of 9 m/s, determine<br />
the angular velocity of the rod just after impact. The<br />
coefficient of restitution is e = 0.4<br />
Copyright © 2010 Pearson Education South Asia Pte Ltd<br />
Example 19.8<br />
Solution<br />
Conservation of Angular Momentum<br />
Angular momentum is conserved about point A since<br />
the impulsive force between the rod and the ball is<br />
internal.<br />
The weights of the ball and rod are non-impulsive.<br />
Copyright © 2010 Pearson Education South Asia Pte Ltd