- #1

Pulling up on a rope, you lift a 4.25-kg bucket of water from a well with an acceleration of 1.80 m/s². What is the tension in the rope?

What part exactly does the acceleration play in this scenario?

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- Thread starter izmeh
- Start date

- #1

Pulling up on a rope, you lift a 4.25-kg bucket of water from a well with an acceleration of 1.80 m/s². What is the tension in the rope?

What part exactly does the acceleration play in this scenario?

- #2

Doc Al

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The net force on an object determines its acceleration. Given the acceleration, you can find the net force. Tell us what you know about Newton's second law.Originally posted by izmeh

What part exactly does the acceleration play in this scenario?

- #3

net force = ma

a = f/m

1.80 = f/4.25

f = 7.65

a = f/m

1.80 = f/4.25

f = 7.65

- #4

Doc Al

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Draw yourself a diagram.

- #5

there is the force of me pull it up @ 1.80m/s²

the mass 4.25 pulling down...

the mass 4.25 pulling down...

- #6

Doc Al

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There is a force pulling up, that's the tension (T) in the rope. There's also a force pulling down, the weight (not mass!) of the bucket&water. (Note: gravity pulls on the mass, that pull is the weight. You can calculate the weight by multiplying the mass by g, the acceleration due to gravity. g = 9.8 [m/sOriginally posted by izmeh

there is the force of me pull it up @ 1.80m/s²

the mass 4.25 pulling down...

The net force is (choosing up as positive):

F

From Newton's second law:

F

Now it's your turn. You know a (it's 1.8 m/s

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