heylollipop

5+ Year Member
Jun 26, 2011
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Could someone explain to me why, in a pendulum system, the mass accelerates as it falls, but not with constant acceleration? In other words, why doesn't the velocity of the mass increase uniformly as it falls?
 

BerkReviewTeach

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10+ Year Member
May 25, 2007
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While gravity remains constant throughout its flight, the tension acting on the object is changing as it traverses its path, so the resultant force vector varies. Without a constant acceleration, you don't get uniform increase in speed.