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:

3FT 1M Wire Zip Ties Cable Straps Cord Magic Taps New RT
3FT 1M Wire Zip Ties Cable Straps Cord Magic Taps New RT
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Coghlans Coghlan 30 Stretch Strap Tie Down Secure Cargo Bungee Cord Hook 0752
Coghlans Coghlan 30 Stretch Strap Tie Down Secure Cargo Bungee Cord Hook 0752
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2mm Width 43 Black Nylon Cable Cord Wire Zip Tie Organizer 1000 Pcs
2mm Width 43 Black Nylon Cable Cord Wire Zip Tie Organizer 1000 Pcs
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3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 77 500 Pcs
3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 77 500 Pcs
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12 HEAVY DUTY BUNGEE CORD TIE DOWN CORDS 24 LONG
12 HEAVY DUTY BUNGEE CORD TIE DOWN CORDS 24 LONG
$7.99
3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 55 500 Pcs
3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 55 500 Pcs
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2mm Width White Nylon Cable Cord Wire Zip Tie Organizer 35 1000 Pcs
2mm Width White Nylon Cable Cord Wire Zip Tie Organizer 35 1000 Pcs
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250 Pcs 5mm Width Beige Nylon Cable Cord Wire Zip Tie Organizer 10
250 Pcs 5mm Width Beige Nylon Cable Cord Wire Zip Tie Organizer 10
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24 SUPER THICK BUNGEE CORDS TIE DOWN 72 length
24 SUPER THICK BUNGEE CORDS TIE DOWN 72 length
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Hook  Loop Fastening Ties 6 inch 50 Pack WHITE Tie Down Cord Cable Reusable
Hook Loop Fastening Ties 6 inch 50 Pack WHITE Tie Down Cord Cable Reusable
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1000 PACK 4 6 8 12 inch Assorted Cable Zip Ties Wrap Cord Free cutting tool
1000 PACK 4 6 8 12 inch Assorted Cable Zip Ties Wrap Cord Free cutting tool
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50 Self locking Green Colored Nylon Wire Cord Cable Zip Ties Straps Organizers
50 Self locking Green Colored Nylon Wire Cord Cable Zip Ties Straps Organizers
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3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 75 500 Pcs
3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 75 500 Pcs
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500pcs 6 inch White Network Cable Cord Wire Strap Zip Tie Nylon 4150mm
500pcs 6 inch White Network Cable Cord Wire Strap Zip Tie Nylon 4150mm
$9.66
1000 PCS Pack 12 inch White Network Cable Cord Wire Tie Strap 60 Lbs Zip Nylon
1000 PCS Pack 12 inch White Network Cable Cord Wire Tie Strap 60 Lbs Zip Nylon
$21.88
2mm Width Black Nylon Cable Cord Wire Zip Tie Organizer 35 1000 Pcs
2mm Width Black Nylon Cable Cord Wire Zip Tie Organizer 35 1000 Pcs
$8.09
1000 PCS Pack 4 inch White Network Cable Cord Wire Tie Strap 25 Lbs Zip Nylon
1000 PCS Pack 4 inch White Network Cable Cord Wire Tie Strap 25 Lbs Zip Nylon
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100 PCS Pack 12 inch White Network Cable Cord Wire Tie Strap 60 Lbs Zip Nylon
100 PCS Pack 12 inch White Network Cable Cord Wire Tie Strap 60 Lbs Zip Nylon
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100 PCS 4 inch White Network Cable Cord Wire Tie Strap 25 Lbs Zip Nylon
100 PCS 4 inch White Network Cable Cord Wire Tie Strap 25 Lbs Zip Nylon
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250pcs Pack NEW White Network Cable Cord Wire Strap Zip Tie Nylon 5400mm durabl
250pcs Pack NEW White Network Cable Cord Wire Strap Zip Tie Nylon 5400mm durabl
$17.85
250pcs Pack White Network Cable Cord Wire Strap Zip Tie Nylon 8350mm durable
250pcs Pack White Network Cable Cord Wire Strap Zip Tie Nylon 8350mm durable
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250pcs Pack 12 inch White Network Cable Cord Wire Strap Zip Tie Nylon 4300mm
250pcs Pack 12 inch White Network Cable Cord Wire Strap Zip Tie Nylon 4300mm
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2mm Width White Nylon Cable Cord Wire Zip Tie Organizer 3 1000 Pcs
2mm Width White Nylon Cable Cord Wire Zip Tie Organizer 3 1000 Pcs
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4mm Width White Nylon Cable Cord Wire Zip Tie Organizer 112 250 Pcs
4mm Width White Nylon Cable Cord Wire Zip Tie Organizer 112 250 Pcs
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100 PCS Pack 8 inch black Network Cable Cord Wire Tie Strap 50 Lbs Zip Nylon
100 PCS Pack 8 inch black Network Cable Cord Wire Tie Strap 50 Lbs Zip Nylon
$6.99
Prime Products 15 0312 12 Bungee Tie Cord and Ball
Prime Products 15 0312 12 Bungee Tie Cord and Ball
$13.11
New 6pc 6 Ball Bungee Cord Canopy Tarp Tie Down Straps  US FREE SHIPPING
New 6pc 6 Ball Bungee Cord Canopy Tarp Tie Down Straps US FREE SHIPPING
$4.27
New 12pc 6 Ball Bungee Cord Canopy Tarp Tie Down Straps  US FREE SHIPPING
New 12pc 6 Ball Bungee Cord Canopy Tarp Tie Down Straps US FREE SHIPPING
$5.99
1000 PACK 4 6 8 12 inch Assorted Cable Zip Ties Wrap Cord Free cutting tool
1000 PACK 4 6 8 12 inch Assorted Cable Zip Ties Wrap Cord Free cutting tool
$17.99
3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 114 250 Pcs
3mm Width White Nylon Cable Cord Wire Zip Tie Organizer 114 250 Pcs
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2mm Width White Nylon Cable Cord Wire Zip Tie Organizer 55 1000 Pcs
2mm Width White Nylon Cable Cord Wire Zip Tie Organizer 55 1000 Pcs
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1000 PCS Pack 4 Inch 4 White Network Cable Cord Wire Tie Ties Strap 25 Lbs Z
1000 PCS Pack 4 Inch 4 White Network Cable Cord Wire Tie Ties Strap 25 Lbs Z
$11.85
Pack of 10 18 Black Hook and Loop Fastener Cable Tie Down Straps Reusable Cord
Pack of 10 18 Black Hook and Loop Fastener Cable Tie Down Straps Reusable Cord
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50 nylon weather resistant self locking cable wire ties zip cord straps blue
50 nylon weather resistant self locking cable wire ties zip cord straps blue
$2.59
50 nylon weather resistant self locking cable wire ties zip cord straps green
50 nylon weather resistant self locking cable wire ties zip cord straps green
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200 standard uv resistant nylon cord wire cable fasteners strips zip ties straps
200 standard uv resistant nylon cord wire cable fasteners strips zip ties straps
$5.57
nylon green colored uv resistant cable cord wire organizer strap zip ties 100pcs
nylon green colored uv resistant cable cord wire organizer strap zip ties 100pcs
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100x nylon weather resistant self locking cable wire ties zip cord straps blue
100x nylon weather resistant self locking cable wire ties zip cord straps blue
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nylon blue colored uv resistant cable cord wire organizer strap zip ties 200pcs
nylon blue colored uv resistant cable cord wire organizer strap zip ties 200pcs
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