Abungee cord loosely hangs from a bridge. its length while hanging is 79.5 m. when a 67.3 kg bungee jumper is attached and makes her leap, after bouncing around for a bit, she ends up hanging upside down 83.0 m from the jump point, where the bungee cord is tied.

x=82.81 m

Explanation:

Mass m= 67.3 Kg

Length while hanging = 79.5 m

Length while hanging upside down = 83 m

Lets take stiffness constant  of rod is K

So

mg = KΔx

67.3 x 10 = K(83-79.5)

K=192.28 N/m

Lets take at distance x cord is tied

mg = K(x-79.5)

63.7 x 10 = 192.28 (x-79.5)

x=82.81 m

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )