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It wastes energy. However, SOME friction is also needed, or the pulley would just slip.
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∙ 12y ago
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Does a tire or pulley have more friction?
A tyre has more friction than a pulley.
Does a pulley use friction?
no
What type of friction does a pulley overcome?
sliding
What causes the output work of a machine to e less than the input work?
Some of the input force is lost due to friction. If you are using a pulley system then there is friction between the rope and the pulley and there is also friction within the ball bearings of the pulley itself. If you are using an inclined plane there is friction between the plane and the object traveling upon it. In a friction-less world the input is equal to the output.
How do you find the friction of a pulley?
in the wheel because the treads on the wheel rub against the ground,causing friction
Does a tire or pulley have more friction?
A tyre has more friction than a pulley.
Does a pulley use friction?
no
What type of friction does a pulley overcome?
sliding
What is prusik minding pulley?
friction hitch
Rosa has designed a pulley system for a school science project She has determined that as the coefficient of friction increases the efficiency of the pulley decreases With a coefficient of friction?
50*
What are the error anayalsis in the atwood machine?
Friction of the pulley
How do you calculate the friction in a pulley?
To find the velocity ratio of a pulley, you must first find the effort and load distances. then you divide the two and there you have you VR (velocity ratio).
What causes the output work of a machine to e less than the input work?
Some of the input force is lost due to friction. If you are using a pulley system then there is friction between the rope and the pulley and there is also friction within the ball bearings of the pulley itself. If you are using an inclined plane there is friction between the plane and the object traveling upon it. In a friction-less world the input is equal to the output.
How do you find the friction of a pulley?
in the wheel because the treads on the wheel rub against the ground,causing friction
What is the mechanical advantage of the pulley system?
The mechanical advantage of the pulley system is the inertia and friction of the unbalanced and balanced forces acting on the mechanical advantage which is part of the pulley system....
When you want to pull downward to lift something the main advantage of passing a rope through a single pulley rather than just up over the branch of a tree is that the pulley reduces friction?
Reduces friction
Why is a pulley is a lever?
Because they both reduce friction, making your work easier
