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:

3mm x 100mm Network Cable Cord Wire Nylon Zip Ties White 100 Pcs
3mm x 100mm Network Cable Cord Wire Nylon Zip Ties White 100 Pcs
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100 Pcs 3mm x 150mm Nylon Cable Wire Cord Zip Ties Straps White
100 Pcs 3mm x 150mm Nylon Cable Wire Cord Zip Ties Straps White
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100 Pcs Set Nylon Plastic Zip Ties Trim Wrap Cable Loop Cord Wire Self Lock
100 Pcs Set Nylon Plastic Zip Ties Trim Wrap Cable Loop Cord Wire Self Lock
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NIP 6 Qty 42 BUNGEE CORD TIE DOWNS 3 Double Packs Vinyl Coated Sterling
NIP 6 Qty 42 BUNGEE CORD TIE DOWNS 3 Double Packs Vinyl Coated Sterling
$4.99
10x Black Wire Cable Cords Straps Wraps Ties Reusable Hook Loop J6
10x Black Wire Cable Cords Straps Wraps Ties Reusable Hook Loop J6
$0.99
BNIP 4 PACK CARGO BUCKLE TIE DOWN STRETCH CORD BUNGEE 12 STAINLESS STEEL HOOKS
BNIP 4 PACK CARGO BUCKLE TIE DOWN STRETCH CORD BUNGEE 12 STAINLESS STEEL HOOKS
$9.99
100pcs 3x100mm Self Locking Network Nylon Cable Ties Wire Zip Cord Strap Ties
100pcs 3x100mm Self Locking Network Nylon Cable Ties Wire Zip Cord Strap Ties
$0.99
200 PCS 6 inch Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon Five Color
200 PCS 6 inch Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon Five Color
$5.58
100pcs 3x100mm Self Locking Network Nylon Cable Ties Wire Zip Cord Strap Ties
100pcs 3x100mm Self Locking Network Nylon Cable Ties Wire Zip Cord Strap Ties
$0.90
200Pcs Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon 4 inch Five Color
200Pcs Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon 4 inch Five Color
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1000PCS 4 Black Nylon Network Cable Cord Wire Tie Strap Zip
1000PCS 4 Black Nylon Network Cable Cord Wire Tie Strap Zip
$10.53
New 100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
New 100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
$0.99
100PCS Pack 12 inch 60 Lbs Black Network Cable Cord Wire Tie Strap Zip Nylon
100PCS Pack 12 inch 60 Lbs Black Network Cable Cord Wire Tie Strap Zip Nylon
$5.96
100 PCS Pack 12 inch Network Cable Cord Wire Tie Strap 60 Lbs Zip Nylon Black
100 PCS Pack 12 inch Network Cable Cord Wire Tie Strap 60 Lbs Zip Nylon Black
$5.99
20 Easy Use Wire Cord Cable Clips Ties Organizer Holder Home Room Decor DIY TW
20 Easy Use Wire Cord Cable Clips Ties Organizer Holder Home Room Decor DIY TW
$1.55
500Pcs Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon 4 inch Five Color
500Pcs Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon 4 inch Five Color
$6.99
100 PCS Pack 8 inch Black Network Cable Cord Wire Tie Strap Zip Nylon
100 PCS Pack 8 inch Black Network Cable Cord Wire Tie Strap Zip Nylon
$4.99
200PCS 8 inch Black Network Zip Nylon Cable Cord Wire Tie Strap
200PCS 8 inch Black Network Zip Nylon Cable Cord Wire Tie Strap
$3.98
100 PCS Pack 8 inch white Network Cable Cord Wire Tie Strap Zip Nylon
100 PCS Pack 8 inch white Network Cable Cord Wire Tie Strap Zip Nylon
$4.99
1000Pcs Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon 4 inch Five Color
1000Pcs Network Cable Cord Wire Tie Strap 15 Lbs Zip Nylon 4 inch Five Color
$10.68
100 6 INCH ZIP CABLE TIES TIE WRAP NYLON BLK 25 LBS UV FASTEN STRAP WIRE LOOP
100 6 INCH ZIP CABLE TIES TIE WRAP NYLON BLK 25 LBS UV FASTEN STRAP WIRE LOOP
$4.75
GIFT New 100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
GIFT New 100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
$0.99
24 G INDUSTRIAL TOOL 24 2ft SHOCK BUNGEE CORDS HEAVY DUTY TIE DOWN STRAPS
24 G INDUSTRIAL TOOL 24 2ft SHOCK BUNGEE CORDS HEAVY DUTY TIE DOWN STRAPS
$22.49
100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
$1.88
New 100 PCS Pack 12 inch Black Network Cable Cord Wire Tie Strap Zip Nylon PO
New 100 PCS Pack 12 inch Black Network Cable Cord Wire Tie Strap Zip Nylon PO
$5.98
New 100 PCS Pack 12 inch White Network Cable Cord Wire Tie Strap Zip Nylon PO
New 100 PCS Pack 12 inch White Network Cable Cord Wire Tie Strap Zip Nylon PO
$4.89
New 100 PCS Pack 8 inch black Network Cable Cord Wire Tie Strap Zip Nylon Hot
New 100 PCS Pack 8 inch black Network Cable Cord Wire Tie Strap Zip Nylon Hot
$3.59
Bungee Cord Assortment and Tarp Ties 24 pieces by BISON GEAR UV Resistant Hea
Bungee Cord Assortment and Tarp Ties 24 pieces by BISON GEAR UV Resistant Hea
$27.38
100Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
100Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
$4.49
SHOP 100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
SHOP 100pcs Black White Network Nylon Plastic Cable Wire Zip Tie Cord Strap
$0.99
New Adhesive Cable Cord Wire Organizer Plastic Clip Tie Fixer Fastener Holder TS
New Adhesive Cable Cord Wire Organizer Plastic Clip Tie Fixer Fastener Holder TS
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2000 PCS 6 inch Black Network Cable Cord Wire Zip Tie Strap 66 Lbs Zip Nylon
2000 PCS 6 inch Black Network Cable Cord Wire Zip Tie Strap 66 Lbs Zip Nylon
$9.95
200Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
200Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
$5.38
300Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
300Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
$5.99
500Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
500Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps UL
$8.99
1000Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps U
1000Pcs 4 Nylon Cable Zip Ties Black Network Cable Wire Wrap Cord Loop Straps U
$9.59
Lot of 3 VELCRO Brand ONE WRAP For Cables Wires  Cords 23 x 7 8 Ties 3 Ct
Lot of 3 VELCRO Brand ONE WRAP For Cables Wires Cords 23 x 7 8 Ties 3 Ct
$12.99
200 PCS BLACK Pack 7 inch Network Cable Cord Wire Tie Strap 50 Lb Zip Nylon USA
200 PCS BLACK Pack 7 inch Network Cable Cord Wire Tie Strap 50 Lb Zip Nylon USA
$6.49
1pc 4mm Thick 103cm Cord Covered Rubber Rope Stretch Bungee Tarp Tie Down J1N1
1pc 4mm Thick 103cm Cord Covered Rubber Rope Stretch Bungee Tarp Tie Down J1N1
$4.77

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