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Q: Does a block and tackle has a mechanical advantage of 4?
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How much does a block and tackle pulley system multiply the effort force?

4 (:


What is the mechanical advantage of a ramp that is 8 m long and 2 m high porch?

The mechanical advantage is 8/2 = 4.


How long is a ramp from the top of a pyramid to the ground that has a mechanical advantage of 4?

The height of the Great Pyramid = 139 metres The slope of a ramp with a mechanical advantage of 4 = 4x139 = 556m


How long is a ramp from the top of the pyramid to the ground that has a mechanical advantage of 4?

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The ideal (not idea) mechanical advantage is 30/4 = 7.5


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What is the mechanical advantage for a bicycle?

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A hoisting device used on oil wells?

The Draworks is the "winch" that the drilling line is attached. This is ran in usually a 4, 6 or 8 part system (like a block and tackle) that gives the mechanical advantage to be able to hoist the drill string in and out of the well. From the blocks you would hang either a Top Drive or a Kelly Bar. The top drive or kelly is then used to lift and lower components into a well bore.


What is the mechanical advantage of a lever with an effort arm of 16cm an a resistance arm of 2cm?

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How much force will the operator have to apply if the mechanical advantage of the pulley system is 4?

1/4 the output force.


What is the mechanical advantage of a first class lever in which the fulcrum is 10 inches from the resistance and 40 inches from the effort?

answer is 4