Physics
The picture below shows a boy climbing a rope ladder hanging from the branch of a tree. The boy in the picture finds it difficult to climb the ladder as it turns about the axis where he is holding. The instructor tells the boy to stretch the body with the hands stretched up and make the body parallel to the ladder and climb
(a) Which force caused the ladder to turn?
(b) How does keeping the body parallel to the ladder make climbing easier?
Force
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Answer
(a) His own weight causes the torque on his body and turns about his hands holding the ladder.
(b) By stretching and keeping the body parallel to the rope decreases the torque arm, reducing the torque and makes it easier to climb.
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