Question

The initial speed of the meter stick at the moment it was released was In a...

The initial speed of the meter stick at the moment it was released was

In a reaction time experiment the average displacement of the meter stick is 27 centimeters before it is caught. Calculate the reaction time (in seconds) of the person who caught the meter stick.

Use 9.8 m/s^2 for the acceleration due to gravity, "g".
Express your answer to two decimal places.

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Answer #1

h= 0.5gt2
0.27 = 0.5x9.8xt2

t= 0.2347 sec .

reaction time = 0.23 sec .

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