45.  A 0.20-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o’clock position, the stick tension is 16 N. Find the tensions in the stick when the ball is at the twelve o’clock and at the six o’clock positions.

 

 

At 3 O’clock position the sum of radial forces is

 

 

At the 12 O’clock position  sum of radial forces is

 

 

 

At the 6 O’clock position  sum of radial forces is

 

 

 

 

 

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This page last updated on January 11, 2020