Cord Tie

multiple choice, what's the answer?

A woman performs a 'bungee jump', falling from a bridge with a length of elastic cord tied around her ankles. The gravitational potential energy of lost by the jumper at the lowest point has been transferred as:
A elastic strain energy in the cord.
B elastic strain energy and internal energy in the cord
C kinetic energy of the jumper OR
D kinetic energy of the jumper plus internal energy in the cord.

With reasons please. Thanks a lot.

Like all multiple choice you have to read carefully. The key bit is "at the lowest point".

At the lowest point the jumper has no velocity as their velocity is right at the point between going down and going up. So they have no kinetic energy. This rules out C and D.

Most of the energy will be transfered to the strain energy is the cord so it is A or B. However the transfer is not perfect and there will also be heat generated. Not sure what is meant by "internal energy in the cord" I would argue this includes heat in the cord. On that basis I would go with answer "B".

Discover Cord Tie On eBay Below:

1000PCS 18LBS Plastic Cable Ties Network Cable Cord Wire Strap Nylon Tie Down
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50 NYLON BLUE COLORED UV RESISTANT CABLE CORD WIRE ORGANIZER STRAP WRAP ZIP TIES
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100PCS Lock Black Nylon Plastic Cable Ties Zip Wire Cord Wrap Pack 12 300x35mm
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10pc Bungee Cord 24 inch Heavy Duty Straps 2 Hooks Tie Down Set
10pc Bungee Cord 24 inch Heavy Duty Straps 2 Hooks Tie Down Set
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10pc Bungee Cord 30 inch Heavy Duty Straps 2 Hooks Tie Down Set
10pc Bungee Cord 30 inch Heavy Duty Straps 2 Hooks Tie Down Set
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200x Heavy Duty Weather Resistant Nylon Green Zip Ties Wraps For Wire Cable Cord
200x Heavy Duty Weather Resistant Nylon Green Zip Ties Wraps For Wire Cable Cord
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10pc Bungee Cord 40 inch Heavy Duty Straps 2 Hooks Tie Down Set
10pc Bungee Cord 40 inch Heavy Duty Straps 2 Hooks Tie Down Set
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10pc Bungee Cord 48 inch Heavy Duty Straps 2 Hooks Tie Down Set
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10pc Bungee Cord 54 inch Heavy Duty Straps 2 Hooks Tie Down Set
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4 ea Boxer Tools 3 8 x 125 Master Mechanic Bulk Rolls Bungee Tie Down Cord
4 ea Boxer Tools 3 8 x 125 Master Mechanic Bulk Rolls Bungee Tie Down Cord
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12 ea Boxer Tools 3 8 x 125 Master Mechanic Bulk Rolls Bungee Tie Down Cord
12 ea Boxer Tools 3 8 x 125 Master Mechanic Bulk Rolls Bungee Tie Down Cord
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6 Inch Hook and Loop Velcro Reusable Strap Cable Cord Wire Ties 25 Pack Black
6 Inch Hook and Loop Velcro Reusable Strap Cable Cord Wire Ties 25 Pack Black
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Heavy Duty Bungee Cord 1 2 x 72 Tie Down
Heavy Duty Bungee Cord 1 2 x 72 Tie Down
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25100mm Locking Nylon Plastic Cable Ties Zip Wire white Cord Wrap 100PCS
25100mm Locking Nylon Plastic Cable Ties Zip Wire white Cord Wrap 100PCS
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1000pcs 6cm Wholesale Nylon Network Cable Cord Wire Tie Strap Cable Zip Tie
1000pcs 6cm Wholesale Nylon Network Cable Cord Wire Tie Strap Cable Zip Tie
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1000x Network Cable Cord Wire Tie Strap 40 Lbs Zip Nylon 8 28200mm
1000x Network Cable Cord Wire Tie Strap 40 Lbs Zip Nylon 8 28200mm
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Lots 100PCS 25100mm Locking Nylon Plastic Cable Ties Zip Wire White Cord Wrap
Lots 100PCS 25100mm Locking Nylon Plastic Cable Ties Zip Wire White Cord Wrap
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NEW 800 pcs Quantity 8 Zip Cable Wire Ties Natural Nylon Fastener cord NEW
NEW 800 pcs Quantity 8 Zip Cable Wire Ties Natural Nylon Fastener cord NEW
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6 Piece 31 rubber tie Downs straps bungee cord tarp Champ 7 255
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Lots 10x 21mm150mm Locking Nylon Plastic Cable Ties Zip Wire White Cord Wrap
Lots 10x 21mm150mm Locking Nylon Plastic Cable Ties Zip Wire White Cord Wrap
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6 Pc Bungee Cords Stretch Elastic Tarp Tie Down Straps Tents Moving 18 24 30
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100PCS 8 3X200MM BLACK NYLON PLASTIC LOCKING CABLE TIES ZIP WIRE WRAP CORDS
100PCS 8 3X200MM BLACK NYLON PLASTIC LOCKING CABLE TIES ZIP WIRE WRAP CORDS
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100PC Unique Cool Black Self Locking Nylon Cable Ties Straps Zip Wire Cord Wrap
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100PCS Special White Self Locking Nylon Cable Ties Straps Zip Wire Cord Wrap TR
100PCS Special White Self Locking Nylon Cable Ties Straps Zip Wire Cord Wrap TR
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100PC Cool Black Self Locking Nylon Plastic Cable Ties Straps Zip Wire Cord Wrap
100PC Cool Black Self Locking Nylon Plastic Cable Ties Straps Zip Wire Cord Wrap
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100PCS Cool White Unique Self Locking Nylon Cable Ties Straps Zip Wire Cord Wrap
100PCS Cool White Unique Self Locking Nylon Cable Ties Straps Zip Wire Cord Wrap
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Fred  Friends LEAFKEEPERS Desktop Organizers Wire Cable Computer Cord Zip Ties
Fred Friends LEAFKEEPERS Desktop Organizers Wire Cable Computer Cord Zip Ties
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1000 PCs 012 x 236 White Network Cable Cord Wire Strap Zip Tie Nylon
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1000 PCs 012 x 393 White Network Cable Cord Wire Strap Zip Tie Nylon
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1000 PCs 012 x 315 White Network Cable Cord Wire Strap Zip Tie Nylon
1000 PCs 012 x 315 White Network Cable Cord Wire Strap Zip Tie Nylon
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10pc 10 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
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10pc 15 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
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10pc 21 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
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10pc 31 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
10pc 31 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
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10pc 41 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
10pc 41 Round End EPDM Rubber Tie Down Hook Strap Cord Bungee
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100 8 Fluorescent Red Pink Yellow Orange Green Cable Cord Wire Tie Strap Zip
100 8 Fluorescent Red Pink Yellow Orange Green Cable Cord Wire Tie Strap Zip
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Heavy Duty Bungee Cord 1 2 x 54 Tie Down
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Heavy Duty Bungee Cord 1 2 x 64 Tie Down
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