physics homework sample one

Physics
Tutor: None Selected Time limit: 1 Day

In lacrosse, a ball is thrown from a net on the end of stick by rotating the stick and forearm about the elbow. If the angular velocity of the ball about the elbow joint is 29.9 rad / s and the ball is 1.15 m from the elbow joint, what is the velocity of the ball?

Jul 13th, 2015

Thank you for the opportunity to help you with your question!

linear velocity v = r w  = 1.15*29.9 = 34.385 m/sec


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Jul 13th, 2015

how did you know its linear velocity 

Jul 13th, 2015

Linear velocity  v  is given by angular velocity *distance

angular velocity w = 29.9 given

Jul 13th, 2015

ok thank you 

Jul 13th, 2015

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