Constant acceleration changes direction twice

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SUMMARY

An object with constant acceleration cannot change direction twice, as established in the discussion. In the context of uniform circular motion, while the tangential acceleration remains zero due to constant speed, the overall acceleration is not constant because it continuously changes direction. This distinction is crucial for understanding the dynamics of objects in circular motion.

PREREQUISITES
  • Understanding of basic physics concepts, particularly acceleration and motion.
  • Familiarity with uniform circular motion and its characteristics.
  • Knowledge of tangential and radial acceleration definitions.
  • Basic mathematical skills to analyze motion equations.
NEXT STEPS
  • Study the principles of uniform circular motion in detail.
  • Learn about the differences between tangential and radial acceleration.
  • Explore the implications of constant acceleration in various motion scenarios.
  • Investigate the mathematical equations governing circular motion dynamics.
USEFUL FOR

Students of physics, educators teaching motion concepts, and anyone interested in the mechanics of circular motion and acceleration dynamics.

spikehoward
Hello,

I just did a practice physics problem that asked if an object with constant acceleration can change direction twice. The answer was no. What if you had an object attached to a string spinning at constant velocity. Is the tangential acceleration constant?
 
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spikehoward said:
What if you had an object attached to a string spinning at constant velocity. Is the tangential acceleration constant?

the tangential acceleration is zero because there is no change in speed and the direction of the acceleration is radial
 
spikehoward said:
I just did a practice physics problem that asked if an object with constant acceleration can change direction twice. The answer was no. What if you had an object attached to a string spinning at constant velocity. Is the tangential acceleration constant?
Although the "tangential acceleration" is constant (and equal to zero), the "acceleration" in the case of uniform circular motion is not constant.
 
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