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# (1) What is centrifugal force and how is it related to centripetal force? (2) When the...

(1) What is centrifugal force and how is it related to centripetal force?

(2) When the centripetal force and mass of a rotating body are held constant, what will to happen to the period (T) if the radius of rotation is increased?

1) centrifugal force is the apparent force felt by a body in circular motion that acts outwardly away from the center of mass.

When we consider the centripetal force as an action , according to newtons third law there is an equal and opposite reaction.This reaction is the centrifugal force.

2) We have F=ma=mrw^2

Since centripetal force is kept constant, Mrw^2 will also be constant.so if radius,r increase then w^2(w=omega)decreases.

W^2 decreases means that angular velocity decreases , therefore the time period increases.

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