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".

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100Pcs Nylon Plastic Black Cable Wire Strap Cord Wrap Self Locking Zip Ties Loop
100Pcs Nylon Plastic Black Cable Wire Strap Cord Wrap Self Locking Zip Ties Loop
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100x Nylon Tighten Black Cable Wire Holder Cord Wrap Self Locking Zip Ties Loop
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Special Bungee Cords 24 Pcs Long Short Tarps  Tie downs Assortment Jar UV
Special Bungee Cords 24 Pcs Long Short Tarps Tie downs Assortment Jar UV
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12 HEAVY DUTY BUNGEE CORD TIE DOWN CORDS 24 LONG
12 HEAVY DUTY BUNGEE CORD TIE DOWN CORDS 24 LONG
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4 X 150 200 250 300mm Nylon Plastic Cable Wire Zip Ties Cord Wrap
4 X 150 200 250 300mm Nylon Plastic Cable Wire Zip Ties Cord Wrap
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100pcs Nylon Plastic Zip Trim Wrap Cable Loop Ties Fasten Wire Self Locking Cord
100pcs Nylon Plastic Zip Trim Wrap Cable Loop Ties Fasten Wire Self Locking Cord
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3mm x 100mm Network Cable Cord Wire Colourful Nylon Zip Ties 500 Pcs
3mm x 100mm Network Cable Cord Wire Colourful Nylon Zip Ties 500 Pcs
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Bungeee Poly Cords 24 Inch Blue 2 Hooks Tie Down Set lot of 4
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Bungeee Poly Cords 24 Inch Yellow 2 Hooks Tie Down Set lot of 4
Bungeee Poly Cords 24 Inch Yellow 2 Hooks Tie Down Set lot of 4
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Bungeee Poly Cords 24 Inch Camo Green 2 Hooks Tie Down Set lot of 4
Bungeee Poly Cords 24 Inch Camo Green 2 Hooks Tie Down Set lot of 4
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6 Inch Hook and Loop Reusable Strap Cable Cord Wire Ties 50 Pack Red
6 Inch Hook and Loop Reusable Strap Cable Cord Wire Ties 50 Pack Red
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6 Inch Hook and Loop Reusable Strap Cable Cord Wire Ties 75 Pack Red
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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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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
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
10pc Bungee Cord 54 inch Heavy Duty Straps 2 Hooks Tie Down Set
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15 Bungee Cord Hooks SJ Shock Cord Rubber Rope Hook Hay Cover Tarp Tie Down
15 Bungee Cord Hooks SJ Shock Cord Rubber Rope Hook Hay Cover Tarp Tie Down
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10 PK Heavy Duty 36 3 Long x 1 2 Dia Thick Bungee Cords Tie Down Cord Strap
10 PK Heavy Duty 36 3 Long x 1 2 Dia Thick Bungee Cords Tie Down Cord Strap
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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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100X 8 3x200MM BLACK NYLON PLASTIC LOCKING CABLE TIES ZIP WIRE WRAP CORDS Black
100X 8 3x200MM BLACK NYLON PLASTIC LOCKING CABLE TIES ZIP WIRE WRAP CORDS Black
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1000pcs 6cm Wholesale Nylon Network Cable Cord Wire Tie Strap Cable Zip Tie
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4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap Red
4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap Red
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100 X Nylon Plastic Zip Trim Wrap Cable Loop Ties Cord Wire Self Locking White
100 X Nylon Plastic Zip Trim Wrap Cable Loop Ties Cord Wire Self Locking White
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4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap Yellow
4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap Yellow
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Red 4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap
Red 4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap
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Yellow 4200mm Self Locking Nylon Plastic Cable Wire Zip Tie Cord Strap
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6 Piece 31 rubber tie Downs straps bungee cord tarp Champ 7 255
6 Piece 31 rubber tie Downs straps bungee cord tarp Champ 7 255
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30 White NYLON CABLE TIES 11 inch long x 1 8 cord wire ZIP TIE 40 lb pound
30 White NYLON CABLE TIES 11 inch long x 1 8 cord wire ZIP TIE 40 lb pound
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6 Pc Bungee Cords Stretch Elastic Tarp Tie Down Straps Tents Moving 18 24 30
6 Pc Bungee Cords Stretch Elastic Tarp Tie Down Straps Tents Moving 18 24 30
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6 Pc Bungee Cords Stretch Elastic Tarp Tie Down Straps Luggage Tents 18 24 30
6 Pc Bungee Cords Stretch Elastic Tarp Tie Down Straps Luggage Tents 18 24 30
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100x Black Nylon Tighten Cable Wire Holder Wrap Self Locking Zip Ties Loop Cord
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100PCS 8 2X195MM BLACK NYLON PLASTIC LOCKING CABLE TIES ZIP WIRE WRAP CORDS
100PCS 8 2X195MM BLACK NYLON PLASTIC LOCKING CABLE TIES ZIP WIRE WRAP CORDS
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Bungee Cord Assortment with Tarp Ties 24 pieces by BISON GEAR UV Resistant
Bungee Cord Assortment with Tarp Ties 24 pieces by BISON GEAR UV Resistant
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2 100 Piece 12 Black Network Cable Cord Wire Ties Strap Zip Nylon 40 Lbs 200
2 100 Piece 12 Black Network Cable Cord Wire Ties Strap Zip Nylon 40 Lbs 200
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2 100 Piece 12 Black Cable Cord Wire Ties Strap Zip Nylon 50 Lbs Survival 200
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2 100 Piece 12 Black Network Cable Cord Wire Ties Strap Zip Nylon 120 Lbs 200
2 100 Piece 12 Black Network Cable Cord Wire Ties Strap Zip Nylon 120 Lbs 200
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100 PCS 4 inch 18 lbs Yellow Cable Wire Zip Nylon Plastic Cord Ties Tie Wrap
100 PCS 4 inch 18 lbs Yellow Cable Wire Zip Nylon Plastic Cord Ties Tie Wrap
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New Adhesive Cable Cord Wire Organizer Plastic Clip Tie Fixer Fastener Holder
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