Centri...? Force
If you have ridden on a classic Merry-go-round you know that at those high speeds, you have to hold on to dear
life, because you feel a force pulling you off of the ride. This force is called centrifugal force. However, if you have
been attending physics class, you know that this force does not exist! Well then what is that feeling that you are so
afraid will end your dear life if you let go? This feeling is the force you are applying back on to the merry-go-round,
because it is also applying a force onto you. This is called the very real, centripetal force.
Newton's Third Law:
For every action there is an equal and opposite reaction.
For every action there is an equal and opposite reaction.
https://www.k12.gov.sk.ca/docs/physics/u5d3phy.html
Centripetal
force is F = ma = m(v^2/r) as pictured in the upper right. The
velocity
is held constant for uniform circular motion and the acceleration is directed toward
the center of the circle at any moment. Therefore, the net force must be directed
toward the center of the circle. If there were no net force the object could not move
in a circle, but instead in a straight line (Giancoli).
is held constant for uniform circular motion and the acceleration is directed toward
the center of the circle at any moment. Therefore, the net force must be directed
toward the center of the circle. If there were no net force the object could not move
in a circle, but instead in a straight line (Giancoli).
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