When a permanent magnet picks up an iron nail, the nail also becomes a magnet. How does the magnetized nail differ from an elect
1 answer:
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Answer:
Therefore it is save to carry a 62kg adult
Explanation:
From the question we are told that:
Mass
Height of supporting Rock
Length of Board
Mass of board
Mass of adult
Generally the moment of balance about wedge part about is mathematically given by
where
therefore
if N=0 at fallen person
Therefore it is save to carry a 62kg adult