SOLUTION: an electric hoist is being used to lift a beam. The diameter of the drum on the hoist is 8 in, and the beam must be raised 2.5 feet. Find the number of degrees through which the dr
Algebra.Com
Question 914148: an electric hoist is being used to lift a beam. The diameter of the drum on the hoist is 8 in, and the beam must be raised 2.5 feet. Find the number of degrees through which the drum must rotate. Round your answer to the nearest whole number.
a) 37 deg
b)36 deg
C) 39 deg
D) 38 deg
I have been trying at this equation for hours. I can not understand it at all.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The wire rides along the outside of the drum.
As the drum rotates the wire is pulled up and wraps around the drum, lifting the beam.
If the drum is rotated in the opposite direction, the wire would unwrap from the drum and the beam would lower.
If the drum was to make one revolution, the length of wire captured would be equal to the circumference of the circle (the drum).
Make up a ratio.
I think you have an error in your setup.
The drum diameter must be in feet and not inches or else the answer is not one of the given choices.
For a circle,
Substitute,
Rounding up,
RELATED QUESTIONS
An electric hoist is being used to lift a beam. The diameter of the drum on the hoist is... (answered by anand429)
An electric hoist is being used to lift a beam. The diameter of the drum on the hoist is... (answered by Alan3354)
An electric hoist is used to lift a piece of
equipment. The diameter of the drum on the
(answered by lwsshak3)
An electric hoist is used to lift a piece of equipment. The diameter of the drum on the... (answered by kapilsinghi)
I cannot figure out how to solve this word problem:
An electric hoist is used to lift... (answered by ankor@dixie-net.com)
An electric hoist consists of a drum 10 inches in diameter that lifts a load by winding a (answered by htmentor)
hey, help me in my task please, thank you?
A construction crew wants to hoist a... (answered by mananth)
construction crew wants to hoist a heavy beam so that it is standing up straight. They... (answered by ikleyn)
construction crew wants to hoist a heavy beam so that it is standing up straight. They... (answered by mananth)