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Why would you use a single fixed pulley to lift a box if the pulley's mechanical advantage is 1?
Because it's more convenient. The pulley in this case is not giving a mechanical advantage, but it is allowing you to locate the motive force somewhere other than directly above the box, which can be significant in that you can, for instance, tie the other end of the rope to a horse or a car on the ground, whereas it might be difficult to persuade either of those things to climb a ladder.
Even without that, using a pulley allows you to use your own weight to help lift the box. To lift it from above with a rope, you'd actually have to pull up on the rope. To lift it from below with a pulley and rope, you might just be able to hold onto the rope and relax your legs, letting gravity do some of the work for you.
What else can I help you with?
What is the mechanical advantage of each pulley system?
A single fixed pulley has a mechanical advantage of 1, as it only changes the direction of the force. A moveable pulley system has a mechanical advantage of 2, as it reduces the force required by half. A block and tackle system, which combines fixed and moveable pulleys, can have a mechanical advantage greater than 2, depending on the number of pulleys used.
Ma of a pulley?
The mechanical advantage (MA) of a pulley system is calculated by counting the number of ropes supporting the moving block or load. For a single fixed pulley, the MA is 1 as it changes the direction of the force but does not provide any mechanical advantage. For a system with multiple pulleys, the MA is equal to the number of ropes supporting the load.
What is the mechanical advantage of a single fixed pulley?
Thew pulley changes the direction of the effort force.
Why is block and tackle better than a fixed pulley?
A block and tackle system provides a mechanical advantage by using multiple pulleys, allowing for easier lifting of heavy loads compared to a single fixed pulley. This system distributes the weight across the pulleys, reducing the amount of force needed to lift the load.
How is the mechanical advantage of a movable pulley determined?
The method to calculate mechanical advantage is easy to remember and is necessary when rigging the assembly to accomplish the job. The mechanical advantage of a rigging that will require upward pull can be determined by counting the number of rope lengths running between engaged pulleys and those doing the work. Likewise, if the assembly will require downward pull, count the ropes and subtract one to get the mechanical advantage number. The subtraction is necessary because with the fixed pulley, the downward pull equals the load on the other length of rope so the last "pull" rope does not provide any mechanical advantage.
What is the mechanical advantage of each pulley system?
A single fixed pulley has a mechanical advantage of 1, as it only changes the direction of the force. A moveable pulley system has a mechanical advantage of 2, as it reduces the force required by half. A block and tackle system, which combines fixed and moveable pulleys, can have a mechanical advantage greater than 2, depending on the number of pulleys used.
Which is better a incline plane or pulley?
A single pulley simply changes the direction of the force. A block and tackle or multiple pulleys can offer a mechanical advantage - same as an inclined plane. For the same mechanical advantage, a pulley system may be better because of lower friction.
What is the mechanical advantage of a stationary pulley?
Its 1 you need more than 1 to improve mechanical advantage i think it's 2 A single pulley means one axel, making the IMA = 1. A double pulley's IMA would = 2, and so on and so forth.
Why does a fixed pulley have a mechanical advantage of one and a movable pulley has a mechanical advantage of two?
we find mechanical advantage of pulley by using principle of lever. according to this moment of effort is equal to moment of moment of load. As in this case effort arm is equal to load arm. so mechanical advantage is equal to one. but we know we can never finish friction between rope used and pulley so mechanical advantage is less than one
Which type of pulley has an ideal mechanical advantage of 1?
A single fixed pulley (:
The simple machine that provides a mechanical advantage of one?
Single fixed pulley
Why is mechanical advantage of single fixed pulley less than single movable pulley?
because lifes hard
Which is the simple machine that provides the mechanical advantage of 1 the screw second class lever single fixed pulley or single movable pulley?
Single Pulley
Ma of a pulley?
The mechanical advantage (MA) of a pulley system is calculated by counting the number of ropes supporting the moving block or load. For a single fixed pulley, the MA is 1 as it changes the direction of the force but does not provide any mechanical advantage. For a system with multiple pulleys, the MA is equal to the number of ropes supporting the load.
What is the mechanical average of a single movable pulley?
I think what you want is the "mechanical advantage". It's 2 .
What is the mechanical advantage of a single fixed pulley?
Thew pulley changes the direction of the effort force.
What is the most effective pulley?
Oh, dude, the most effective pulley is the compound pulley system. It's like the rock star of pulleys, combining fixed and movable pulleys to give you some serious mechanical advantage. So, if you're looking to lift heavy stuff with minimal effort, that's the one you wanna go for.
