To complete a scene of firefighters in a television program, they need the 98 kg actor to slide down a vertical tube at a certain height h from the ground, the actor starts from rest and reaches the ground with a speed of 3.5 m/s. If the tube produces a constant friction of 794 N during descent, from what height h did the actor's motion begin? a) 7.2145 m. b) 0.625 m.
To complete a scene of firefighters in a television program, they need the 98 kg actor to slide down a vertical tube at a certain height h from the ground, the actor starts from rest and reaches the ground with a speed of 3.5 m/s. If the tube produces a constant friction of 794 N during descent, from what height h did the actor's motion begin? a) 7.2145 m. b) 0.625 m.
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Transcribed Image Text:To complete a scene of firefighters in a television program, they need the 98 kg actor to slide down a
vertical tube at a certain height h from the ground, the actor starts from rest and reaches the ground
with a speed of 3.5 m/s. If the tube produces a constant friction of 794 N during descent, from what
height h did the actor's motion begin?
a) 7.2145 m.
b) 0.625 m.
c) 0.0078 m.
d) 3.6073 m.
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