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The pulley allows the re-direction of force by 180 degrees. A ramp cannot do that. Say you need to lift an engine out of a car's engine bay. You would use a pulley because as you pull straight down the engine goes straight up. That presumes that you weigh more than the engine.
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What must increase as the input force decreases for a pulley?
I don't know........ Google it, it's better than Answers.com
Does a tire or pulley have more friction?
A tyre has more friction than a pulley.
WHY IS MOVEABLE PULLEY MORE USEFUL THAN FIXED PULLEY?
That is not always true. Sometimes a fixed pulley is more useful.
What are the three kinds of pulley?
1. The fixedpulley - requires more effort than the load. 2. The movable pulley - moves with the load which allows for less effort than load. 3. The combined pulley - effort is less than half the weight of the load
How much effort is needed to lift a 75 N weight using the pulley system?
If you are talking about a simple pulley with the pulley attached and load rope attached to the object then you will need a little more than 75N of force. Lifting an object (at a constant velocity) requires a force equal but opposite the weight of the object. With any simple machine you will need to do more work to overcome friction. If you were to use a single pulley with the pulley attached to the object then you will need a little more than 37.5 N. If you were to use a multiple pulley system then you would need to know the mechanical advantage of the pulley system.
Would a skateboard ramp have a greater slope than a handicap ramp?
yes
Are water pumps off a 1998 an 1994 dodge ram 1500 the same?
The 1994 would have a bolt on pulley while the 1998 had a pressed on pulley. Other than that they are same. A new pump would be of the pressed on pulley style.The 1994 would have a bolt on pulley while the 1998 had a pressed on pulley. Other than that they are same. A new pump would be of the pressed on pulley style.
Is a halfpipe easier to skate than a mini ramp?
No, your better off starting on a 4 foot mini ramp. Perfect any moves before taking on a halfpipe.
How can you decrease the effort needed to push a weight to the top of the ramp?
Lubricate the slope with grease (except where you would be walking, of course!), or put the weight on a wheeled trolley. You could also use a pulley system, but that would mean pulling the weight up, rather than pushing.
Would you use a fixed pulley or movable pulley to lift a heavy load?
Fixed if it weighed as less than you, but a movable pulley wouldn't be helpful here. You'd be best with a pulley with multiple supporting ropes.
What must increase as the input force decreases for a pulley?
I don't know........ Google it, it's better than Answers.com
If you have motor rpm motor shaft sizeblower pulley size how you get blower rpm?
Drive Pulley = pulley on motor Driven Pulley = pulley on blower First determine your Ratio - divide large pulley size by small pulley size this will give you gear ratio, Example 2" drive pulley and a 4" Driven Pulley = 2:1 gear ratio If you know your motor shaft RPM divide that number by the ratio to get the RPM of the driven pulley, if your shaft rpm is 1800 rpm you would divide 1800 by 2 which would = 900 rpm on your driven pulley if your drive pulley is larger than than your driven pulley you multiply the rpm by the ratio example 1800 rpm x 2 = 3600 rpm
Can the drive pulley be bigger than the driven pulley?
Yes.
Why does a skateboard make a louder noise on a concrete ramp than a wooden ramp?
Concrete has a lot of creases and bumps and the wooden ramp is smooth
How does the speed of a ball change with the different ramp surfaces?
It depends on the ramp surfaces because some ramp surfaces have less friction than others and some have more friction than others.
Can you use skateboard wax for a skimboard ramp wax?
I'm sure there are different kinds of wax that will work better than skate wax, but any wax is going to work better than none. So I say Yes, do it!
Does a tire or pulley have more friction?
A tyre has more friction than a pulley.
