Heavy Duty Rope
A 1000 kg safe is 2.0 m above a heavy-duty spring when the rope holding the safe breaks.?
The safe hits the spring and compresses it 50 cm.
What is the spring constant of the spring?
The gravitational potential energy of the safe PE = mgh is converted into the elastic potential energy of the spring 0.5 x k x sqr(x), where h 0 2.0 m, m = 1000 kg and x = 0.50 m. We solve for k and get: k = 2mgh / sqr(x) = 2 x 1000 kg x 9.8 m/s^2 x 2.0 m / sqr(.50 m) = 156,800 N/m = 1570 N/cm.
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O'Brien "Tube Rope" Heavy Duty (60-feet) Sale Price: $14.99  |
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Tested to 4,100 pounds, this heavy-duty towrope is recommended for all multiple-rider O'Brien water tubes. The 16-strand, 120-filament rope comes in a blue/red weave and measures 60 feet long. |
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Kwik Tek Airhead Heavy Duty Tow Harness Sale Price: $14.22 |
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AIRHEAD® Heavy Duty Tow Harness - This heavy duty tow harness is perfect for pulling skiers, wake boarders and up to 4 rider towables. Simply clip it onto your boat with the 5,000-pound tensile strength hooks, and attach your ski or tube rope to the heavy duty Kwik-Connect... |
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UPC: 7946851528562 TON HEAVY DUTY POLY ROPE HOIST * Rugged 2.5 nylon pulley * Zinc plated, drop forged eye sling hooks and clip * 65 feet of 3/8" rope * Lifting power 7:1 * 2 ton (4000lbs) working load capacity |
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3/8" X 150' nylon 3 strand anchor line with a heavy-duty galvanized thimble professionally hand- spliced on one end. This supreme anchor line is made from 3 strand nylon that will meet your requirements because it is tough, wear resistant, and designed especially for anchoring and, it is American Made... |
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Looking for a great way to tone your entire body? Turn to the purple Xertube resistance band, which creates just the right amount of tension for your home workout. Made of the highest quality rubber, Xertube bands are designed to offer progressive resistance, which increases the resistance level as your body exerts additional force... |
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Multipet Nuts for Knots Heavy Duty Rope Dog Toy with Tug, Large Sale Price: $6.48 |
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Multipet's nuts for knots large heavy duty rope dog toy designed for any pet that is tough on toys and likes to tug, chew and fetch. |
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Gardner Bender 45-312UVB 12-Inch Black Heavy Duty UV Resistant Cable Ties, 8-Pack Sale Price: $0.67 |
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8 Pack, 10-3/4" Balck Cable Tie, Nylon, Ultra Violet Resistant, 50 LB Tensile Strength, One Piece, Self Locking, . |
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O'Brien Heavy Duty Towable Tube Rope 2012 Sale Price: $19.95 |
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This colorful and awesome Heavy Tube Rope from O'Brien can easily pull any single rider with this sturdy line that is heavy duty and tough. The 16 strands along with the 60 filament polypropylene braids give this rope strength and will last years, with years of water fun... |
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Neiko 51004A Heavy-Duty 20-Feet Tow - Cargo Strap with 20,000-Pound Capacity Sale Price: $28.92 |
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This 2-Inch X 20-Feet extra heavy-duty 20,000-Pound capacity cargo strap is ideal for towing and freeing trucks or disabled vehicles from mud, sand or snow. This strap features double twisted ends that fit right onto tow hooks... |
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Neiko 20' Ft Heavy Duty 10,000 Lb Tow Strap with Hook Sale Price: $9.70 |
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Features 2" x 20" strong polyester tow strap with a maximum pulling at 10,000 lbs. With two safety hooks on both ends, allows for easy and fast hook ups and releases. |
Heavy duty tow rope
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