A \( 700-\mathrm{N} \) man jumps out of a window into a fire net \(...

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A \( 700-\mathrm{N} \) man jumps out of a window into a fire net \( 10 \mathrm{~m} \) below. The net stretches \( 2 \mathrm{~m} \)
P downwards before bringing the man to rest and

W tossing him back into the air. The maximum potential energy of the net, compared to its unstretched potential energy, is:
(1) \( 8400 \mathrm{~J} \)
(2) \( 5600 \mathrm{~J} \)
(3) \( 1400 \mathrm{~J} \)
(4) \( 7000 \mathrm{~J} \)
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