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Is the output force greater than the input force for a pizza cutter a hockey stick a single fixed pulley or a screw?
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∙ 9y ago
Hockey stick
Karen Eby
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What type of advantage described the ability of a machine to increase output force?
Mechanical advantage is the greater outputted force than inputted force that is generated by using a machine. One example is pulling a pulley to create a much greater output force on the other side that a person could not lift without a pulley.
What is the formula of pulley?
d input ______ d output
What is the input force and output force of a pulley?
The input force is how much force you use to pull on it. The output is what is lifted.
A person does 50j of work to lift a crate using a pulley. the pulley's work output is 42j. What is the pully's mechanical efficiency?
ME=work output/ work input x 100%ME=42/50(100)ME=84
A pulley has a mechanical advantage of 1. What does this tell you about the size and direction of the input and output forces?
its like a input or output
Is a pizza cutter a pulley?
a pizza cutter is not a pulley
What kind of simple machine is cutter?
pulley
What type of advantage described the ability of a machine to increase output force?
Mechanical advantage is the greater outputted force than inputted force that is generated by using a machine. One example is pulling a pulley to create a much greater output force on the other side that a person could not lift without a pulley.
What type of pulley would increase the output force?
A pulley system that has multiple pulleys in line with each one having its output drive the next will increase the force. This would be called a tackle pulley.
What is the formula of pulley?
d input ______ d output
What is the input force and output force of a pulley?
The input force is how much force you use to pull on it. The output is what is lifted.
Why can't a pulley have a mechanical advantage greater than 1?
The mechanical advantage of a pulley can be greater than 1.The efficiency cannot but that is a different matter.
A person does 50j of work to lift a crate using a pulley. the pulley's work output is 42j. What is the pully's mechanical efficiency?
ME=work output/ work input x 100%ME=42/50(100)ME=84
A pulley has a mechanical advantage of 1. What does this tell you about the size and direction of the input and output forces?
its like a input or output
Does a pulley system cause the direction of the output force to be opposite to the direction of the input force?
A pulley system may cause the direction of the output force to differ from that of the input force, but is not guaranteed to do so. In a simple example, a double pulley could easily result in input and output forces in parallel.
What is the efficiency of the pulley system?
If the pulley is frictionless the angle does not matter, the tension in the rope will be the same on both sides of the pulley. If there is friction in the pulley however then you want to reduce the friction as much as possible. You do that by creating as large an angle between the two ropes as possible.
A pulley system always causes the direction of the output force to be the opposite of the input force true or false?
False, Unless it is a twisted pulley system.
