spiderman, whose mass is 80 kg is dangling on the free end of a 12 m-long rope, the other end of which is fixed to a tree limb above. by repeatedly bending at the waist he is able to get the rope in motion eventually getting it to swing enough that he can reach a ledge when the rope makes a 60 degree angle with the vertical. how much work was done by the gravitational force on spiderman in this maneuver?

idk how to set it up

Question

spiderman, whose mass is 80 kg is dangling on the free end of a 12 m-long rope, the other end of which is fixed to a tree limb above. by repeatedly bending at the waist he is able to get the rope in motion eventually getting it to swing enough that he can reach a ledge when the rope makes a 60 degree angle with the vertical. how much work was done by the gravitational force on spiderman in this maneuver?

idk how to set it up

anonymous · Answer

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now work done by gravity is mgh=80*10*6=-4800J