A 700-N Man Jumps Out of a Window into a Fire

question 56

Multiple Choice

A 700-N man jumps out of a window into a fire net 10 m below.The net stretches 2 m before bringing the man to rest and tossing him back into the air.The maximum potential energy of the net, compared to its unstretched potential energy, is:

• A)300 J
• B)710 J
• C)850 J
• D)7000 J
• E)8400 J