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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50 Pcs 150mm x 3mm Electrical Cord Cable Tie Fastener Off White
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700 ATE Tools 14 White Cable Ties Zip Ziptie Organize Cords Wire 14 50 Pc Sets
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24 ATE PROFESSIONAL 72 HEAVY DUTY BUNGEE CORDS TIE DOWN STRAPS 1 2 THICK
24 ATE PROFESSIONAL 72 HEAVY DUTY BUNGEE CORDS TIE DOWN STRAPS 1 2 THICK
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12 ATE PROFESSIONAL 72 HEAVY DUTY BUNGEE CORDS TIE DOWN STRAPS 1 2 THICK
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500 Pieces Black 8 Nylon Cable Straps Zip Ties Wire 50 lbs test Networking Cord
500 Pieces Black 8 Nylon Cable Straps Zip Ties Wire 50 lbs test Networking Cord
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250pcs Pack White Network Cable Cord Wire Strap Zip Tie Nylon 52350mm durable
250pcs Pack White Network Cable Cord Wire Strap Zip Tie Nylon 52350mm durable
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1000 PCS Pack 8 inch Network Cable Cord Wire Tie Strap 50 Lbs Zip Nylon NEW
1000 PCS Pack 8 inch Network Cable Cord Wire Tie Strap 50 Lbs Zip Nylon NEW
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3mm 9mm Self Locking Network Nylon Plastic Cable Wire Zip Tie Cord Strap Black
3mm 9mm Self Locking Network Nylon Plastic Cable Wire Zip Tie Cord Strap Black
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3mm 8mm Self Locking Network Nylon Plastic Cable Wire Zip Tie Cord Strap White
3mm 8mm Self Locking Network Nylon Plastic Cable Wire Zip Tie Cord Strap White
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100PCS 25100mm Locking Nylon Plastic Cable Ties Zip Wire BLACK Cord Wrap
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50 21 Tie Down Tarp Straps Bungee Cords Flatbed Truck Trailer Cord 50 PACK
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Lot of 100Pcs 77 inch Black Network Cable Cord Wire Ties Strap Wrap Zip Nylon
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100 PACK Nylon Cable Zip Tie 11 inch 50LBS Black Wire Cord Electrical 1 BAG NEW
100 PACK Nylon Cable Zip Tie 11 inch 50LBS Black Wire Cord Electrical 1 BAG NEW
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1000 PACK Nylon Cable Zip Tie 11 inch 50LBS Black Wire Cord Electrical 1 BAG NEW
1000 PACK Nylon Cable Zip Tie 11 inch 50LBS Black Wire Cord Electrical 1 BAG NEW
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Lot 100pcs 25100mm white Nylon Plastic Locking Cable Ties Zip Wire Wrap Cords
Lot 100pcs 25100mm white Nylon Plastic Locking Cable Ties Zip Wire Wrap Cords
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100 Piece Cable Ties assortment Network Cable Cord Wire Tie Strap Zip Nylon
100 Piece Cable Ties assortment Network Cable Cord Wire Tie Strap Zip Nylon
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100pcs Black 5x300mm Network Nylon Plastic Cable Wire Zip Tie Cord Strap 10
100pcs Black 5x300mm Network Nylon Plastic Cable Wire Zip Tie Cord Strap 10
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100pcs Black 3x200mm Network Nylon Plastic Cable Wire Zip Tie Cord Strap 5
100pcs Black 3x200mm Network Nylon Plastic Cable Wire Zip Tie Cord Strap 5
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100 Label tie Network Tensile strength Cable Cord Wire Strap Zip Nylon 25100mm
100 Label tie Network Tensile strength Cable Cord Wire Strap Zip Nylon 25100mm
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Pack of 100 12 White Plastic Cable Ties Network Cable Cord Wire Strap 50 Lbs
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100x 100 brand new 25115mm Label tie Network Cable Cord Wire Strap Zip Nylon
100x 100 brand new 25115mm Label tie Network Cable Cord Wire Strap Zip Nylon
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Pack of 500 12 White Plastic Cable Ties Network Cable Cord Wire Strap 50 Lbs
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250 Pcs Beige Nylon Network Cable Cord Wire Zip Tie 10
250 Pcs Beige Nylon Network Cable Cord Wire Zip Tie 10
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380 Pcs 4mm x 200mm Nylon Cable Wire Cord Zip Ties Straps Yellow
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10X Mini Cable Cord Clips Wire Line Organizer Plastic Ties Fixer Fastener Holder
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500 Pieces 4 Black Nylon Cable Zip Wire Ties Network Cord 5 Packs of 100
500 Pieces 4 Black Nylon Cable Zip Wire Ties Network Cord 5 Packs of 100
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3000 4 Nylon Cable Ties Plastic Zip Tie Cord Wire Strap BLACK General Purpose
3000 4 Nylon Cable Ties Plastic Zip Tie Cord Wire Strap BLACK General Purpose
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50x Heavy Duty Weather Resistant Nylon Blue Zip Ties Wraps For Wire Cable Cord
50x Heavy Duty Weather Resistant Nylon Blue Zip Ties Wraps For Wire Cable Cord
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WOW 100 Pcs Self Locking Label Zip Tie Network Cable Marker Tag Cord Wire Strap
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24 HEAVY DUTY BUNGEE CORD TIE DOWN CORDS 24 long
24 HEAVY DUTY BUNGEE CORD TIE DOWN CORDS 24 long
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100 4 inch 18 lbs White Cable Wire Zip Nylon Plastic Cord Ties Tie Wrap
100 4 inch 18 lbs White Cable Wire Zip Nylon Plastic Cord Ties Tie Wrap
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Heavy Duty Bungee Cord 1 2 x 18 Tie Down
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1000PCS 18LBS Plastic Cable Ties Network Cable Cord Wire Strap Nylon Tie Down
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7mm x 210mm Yellow Self locking Plastic Cable Cord Tie Fastener 5pcs
7mm x 210mm Yellow Self locking Plastic Cable Cord Tie Fastener 5pcs
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100 Pcs 8mm x 300mm Reuseable Cable Wire Cord Zip Ties Straps Beige
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100pcs 31200mm Label tie Network Cable Cord Wire Strap Zip Nylon
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FE18 6BK Tie Down Cargo Net 18 In L Black 6 Cords
FE18 6BK Tie Down Cargo Net 18 In L Black 6 Cords
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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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