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What else can I help you with?
Why is the work output of a machine never to the work input?
Some work input is used to overcome friction.
Why is the work output of a machin never equal to the work input?
Some work input is used to overcome friction.
Is the efficiency of a machine is 60 the percentage of work input used to overcome friction?
No, efficiency of a machine is a measure of how well input energy is converted into useful output work, and is calculated as useful work output divided by total work input. The percentage of work input used to overcome friction would be related to the frictional losses in the machine, not the overall efficiency.
In a machine the effort force you apply is used to overcome a?
In a machine, the effort force you apply is used to overcome a resistance force, such as the force of friction, gravity, or inertia. The goal of the machine is to make it easier for you to move or lift objects by increasing efficiency or changing the direction of the force applied.
What does a leverage ratio of 1.8 mean?
It means that an input of 1 unit should result in an output of 1.8 units. The exact output depends on whether the ratio is adjusted for "leakages". In any real machine, some of the force is used up to overcome friction, slippage and so on.
Is work input always equal to work output?
Yes the only thing a machine changes is force,distance or direction
When a machine drills holes in metal some of the work input is used to overcome what?
Friction :) it says so in in my science book.
Why it is not possible to attain 100 percent efficiency in lever?
Some of the force used in a lever will be to overcome friction, this means that not 100% of the force can be used to lever as some of it will be used to overcome friction as well as an multitude of other forces.
How does a car accelerate speed?
A car accelerates when the engine produces more power than what is needed to overcome friction. The car reaches its maximum speed (on the level) when all the engine power is being used to overcome friction.
What happened to the work used to overcome friction?
It's mostly converted to heat. Some of it can be used for the physical work of wearing down the surfaces causing the friction, depending on the hardness of the surfaces and their friction coefficient.
What happens to the energy that is used to overcome friction?
Generally it is transferred into heat and sound while the object is being pushed.
When the machine drills holes in metal some of the work input is used to overcome?
Friction :) it says so in in my science book.
