you set up a pulley to help you left something. You anchor the rope at one end and arrange a moveable pulley?

Question

to achieve a mechanical advantage of 2. By the time you have lifted the object 5m off the ground, how much rope have you pulled through the pulley?A. 2mB.5mC.7mD.10m

Prof. Brendon Sawayn II · Accepted Answer

Assuming only one pulley, on the object being lifted, then you will have pulled 5 m of rope through that one pulley.It is interesting that you posted your question in boating. Did you do this to get a sailor's opinion? We use pulleys all the time for rigging sails, etc..., sometimes with multi part pulleys with 6 or even 8 to one ratios.

Prof. Brendon Sawayn II · Answer

This Site Might Help You.RE:you set up a pulley to help you left something. You anchor the rope at one end and arrange a moveable pulley?to achieve a mechanical advantage of 2. By the time you have lifted the object 5m off the ground, how much rope have you pulled through the pulley?A. 2mB.5mC.7mD.10m

Prof. Brendon Sawayn II · Answer

I'm not sure which pulley you are referring to. If its the lower pulley the rope has travelled through it 5cm and if its the upper pulley 10cm. That's because the lower pulley is supported by rope on both sides so the rope has to travel 10cm through the upper pulley to lift the lower pulley 5cm.

Prof. Brendon Sawayn II · Answer

For the best answers, search on this site https://shorturl.im/avqHiMechanical advantage, distance moved and length of line required with pulleys is a simple mathematical equation. Simply multiply the distance you need to cover with the mechanical advantage factor and you will get the length of line required. In this case, 5m x 2=10m of line required (not including enough to go around the pulleys and to hang on to).

Prof. Brendon Sawayn II · Answer

To achieve a mechanical advantage of 2, you need to pull twice as much rope through the pulley as you have lifted the object.So the correct answer is "D", 10m. Just remember, you don't get something for nothing. To lift twice as much, you have to lift the same twice as far.Regards,Dan

Prof. Brendon Sawayn II · Answer

Don't know but it's called a anchor (rode) not a rope when it's on a boat>

Prof. Brendon Sawayn II · Answer

try wikipidia/block and tackle. all youll ever need to know. simple math!! not trying to be mean, I do the same thing to my kid!

Saul Waters

you set up a pulley to help you left something. You anchor the rope at one end and arrange a moveable pulley?

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