BlueSkyy
Oct24-07, 06:15 PM
1. The problem statement, all variables and given/known data
A mountain climber is rappelling down a vertical wall (the figure below ). The rope attaches to a buckle strapped to the climber's waist 15 cm to the right of his center of gravity. If the climber weighs 770 N, find (a) the tension in the rope and (b) the magnitude and direction of the contact force exerted by the wall on the climber's feet.
https://chip.physics.purdue.edu/protected/GiambattistaMimg/chapter-08/fig-064.gif
# (a) 750 N; (b) 310 N at 22° above the horizontal
# (a) 730 N; (b) 330 N at 19° above the horizontal
# (a) 730 N; (b) 300 N at 16° above the horizontal
# (a) 750 N; (b) 330 N at 19° above the horizontal
# (a) 770 N; (b) 300 N at 16° above the horizontal
2. Relevant equations
basic equations...
F = ma
sin = o/h
cos = a/h
tan = o/a
3. The attempt at a solution
well...
i don't really know where to start.
i have examples of the rope being attached to the climber's CoG, so i tried to work the problem like one of those and came out with a tension of 744 N.
any help would be GREATLY appreciated!
A mountain climber is rappelling down a vertical wall (the figure below ). The rope attaches to a buckle strapped to the climber's waist 15 cm to the right of his center of gravity. If the climber weighs 770 N, find (a) the tension in the rope and (b) the magnitude and direction of the contact force exerted by the wall on the climber's feet.
https://chip.physics.purdue.edu/protected/GiambattistaMimg/chapter-08/fig-064.gif
# (a) 750 N; (b) 310 N at 22° above the horizontal
# (a) 730 N; (b) 330 N at 19° above the horizontal
# (a) 730 N; (b) 300 N at 16° above the horizontal
# (a) 750 N; (b) 330 N at 19° above the horizontal
# (a) 770 N; (b) 300 N at 16° above the horizontal
2. Relevant equations
basic equations...
F = ma
sin = o/h
cos = a/h
tan = o/a
3. The attempt at a solution
well...
i don't really know where to start.
i have examples of the rope being attached to the climber's CoG, so i tried to work the problem like one of those and came out with a tension of 744 N.
any help would be GREATLY appreciated!