Monday
October 20, 2014

Homework Help: calculus

Posted by Bryant on Monday, April 16, 2012 at 11:08pm.

A 160-lb man carries a 25-lb can of paint up a helical staircase that encircles a silo witha radius of 20 ft. If the silo is 90 ft high and the man makes exactly three complete revolutions, how much work is done by the man against gravity in climbing to the top?

I looked at this problem and got that the vector field was conservative. I've asked my tutor if this was correct and she said it "seemed" like it. My question is how does the path taken not matter? The man isn't just cutting straight up the helix to reach the top right?

Wouldn't the stairs make the distance to the top longer for the man?

please answer.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Algebra II - A person who is 6 feet tall walks away from a 50-foot silo toward ...
Math - Charlie is making a toy silo for his children. The silos height is three ...
math - 1. Dan is building a silo on his farm in the shape of a right circular ...
geometry - camera is 4 ft 6 inched off the ground 18 feet away from a silo, how ...
Math - A farmer uses a conveyor belt to move grain from ground level into a ...
math - Estimate the gallons of paint needed to cover the outside of a ...
calculus - The volume of grains in a silo at a particular time (measured in ...
math - Complete in Metric Conversions: Estimate the gallons of paint needed to ...
math - Determine the cost of painting the exterior walls and top of a ...
math - A silo is to be made in the form of a cylinder surmounted by a hemisphere...

Search
Members