A heavy rope, 20 ft long, weighs 0.8 lb/ft and hangs over the edge of a building 100 ft high. a) How much work is done in pulling the rope to the top of the building? Work = ft-lb. a) How much work is done in pulling half the rope to the top of the building? Work = ft-lb.
Added by Roger P.
Close
Step 1
First, we need to find the total weight of the rope. Since the rope weighs 0.8 lb/ft and is 20 ft long, the total weight is: Total weight = (0.8 lb/ft) * (20 ft) = 16 lb Show more…
Show all steps
Your feedback will help us improve your experience
Madhur L and 94 other Calculus 1 / AB educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A heavy rope, 80 ft long, weighs 0.8 lb/ft and hangs over the edge of a building 180 ft high. (a) How much work W is done in pulling the rope to the top of the building? W = ____ ft-lb (b) How much work W is done in pulling 20 ft of the rope to the top of the building? W = _____ ft-lb
Supreeta N.
A heavy rope, 60 ft. long weighs 2 lbs. / ft. and hangs over the edge of a building 120 ft. high. Calculate: How much work is required to pull the rope to the top? How much work is required to pull up half of the rope?
Israel H.
A heavy rope 60 feet long that weighs 1/2 pound per foot is hanging over the edge of a tall building 230 feet high. How much work is done pulling the half the rope to the top of the building?
Narayan H.
Recommended Textbooks
Calculus: Early Transcendentals
Thomas Calculus
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD