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Briefly comment on the accuracy and usefulness of the "metre rule fall method" to estimate the...

Briefly comment on the accuracy and usefulness of the "metre rule fall method" to estimate the average reaction time of a person.

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Answer #1

The "Metre rule fall method" is not very accurate and useful due to following facts:

(A) The metre ruler which is allowed to fall between the index and thumb of a person during this method just has velocity of free fall.

(B) This velocity is sometimes smaller compared to real life velocities such as when a person is driving a car and suddenly meets an accident.

(C) So, the reaction time of a person under this condition is quite different than that of ruler or metre drop or fall method.

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