9. A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus increasing the vertical frictional force that the pole exerts on the fireman. When the force on his hands equals his weight, what happens to the fireman?

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9. A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on
the pole, thus increasing the vertical frictional force that the pole exerts on the
fireman. When the force on his hands equals his weight, what happens to the
fireman? *
The fireman comes to a stop.
The acceleration of the fireman is now upward.
The fireman descends with a slower and slower speed.
The fireman descends with a smaller non-zero acceleration.
The fireman continues to descend, but with constant speed.
96
m
Transcribed Image Text:9. A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus increasing the vertical frictional force that the pole exerts on the fireman. When the force on his hands equals his weight, what happens to the fireman? * The fireman comes to a stop. The acceleration of the fireman is now upward. The fireman descends with a slower and slower speed. The fireman descends with a smaller non-zero acceleration. The fireman continues to descend, but with constant speed. 96 m
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