Why is it easier to climb a mountain via a zigzag trail rather than to climb straight up?
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The expression relating the Power (P). work done (W), and time interval (t) is given as:
If the climber traces a zigzag path, less amount of work is done by the person as the force of gravity and the direction of motion are inclined.
The climber takes less time when he moves in a straight path than in a zigzag path....