Question

Suppose that you are holding a pencil balanced on its point. If you release the pencil and it begins to fall, what will be the angular acceleration when it has an angle of 10.0 degrees from the vertical?

 

Calculate the time t for the pencil to hit the ground, assuming that it falls from standing perfectly vertical and maintains this angular acceleration.
Express your answer in seconds.
 
a=-17.0 rad/s2
Known
+
10.0 g
0 cm
7.5 cm
rw
0-10.0
980 m/s2
N
rw
Axis

Image Transcription

Known + 10.0 g 0 cm 7.5 cm rw 0-10.0 980 m/s2 N rw Axis

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Rotational Mechanics

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