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How do you calculate velocity ratio in a pulley?
the circumference ratio
Velocity ratio of single movable pulley is 2. Give reasons.?
Load "L" is attached to the movable pulley. A rope is fixed at a point in ceiling that passes through the movable pulley. In order to lift the load "L" by "X" meters, the effort "E" needs to travel the distance of 2X meters. (The entire rope needs to be pulled by "E" for a distance of 2X.) Now, Velocity Ratio equals (Distance traveled by "E") divided by (Distance traveled by "L") So it becomes : 2X/X. This equals to 2 Since it is a ratio. it has no units of measurement. -Kiran Karnik
What is velocity ratio?
it is the ratio of the velocity of the point of application of effort to the velocity of the load
Does friction affects velocity ratio?
No. The velocity ratio remains constant but the friction absorbs power.
What is the relationship between ideal mechanical advantage and velocity ratio?
The ratio of Mechanical Advantage and Velocity Ratio is Efficiency. That is to say the ratio of M.A. and V.R. is constant.
How do you calculate velocity ratio in a pulley?
the circumference ratio
What is velocity ratio of a pulley?
The ratio for a simple pulley (not a pulley block), using an inelastic string, is 1.
Why crowning in pulley is necessary?
to avoid the slip , increase the velocity ratio and increase belt and pulley life... thanku..:)
Velocity ratio of single movable pulley is 2. Give reasons.?
Load "L" is attached to the movable pulley. A rope is fixed at a point in ceiling that passes through the movable pulley. In order to lift the load "L" by "X" meters, the effort "E" needs to travel the distance of 2X meters. (The entire rope needs to be pulled by "E" for a distance of 2X.) Now, Velocity Ratio equals (Distance traveled by "E") divided by (Distance traveled by "L") So it becomes : 2X/X. This equals to 2 Since it is a ratio. it has no units of measurement. -Kiran Karnik
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 is velocity ratio?
it is the ratio of the velocity of the point of application of effort to the velocity of the load
What is a fixed ratio?
a ratio that was at first incorrect but has been fixed
Why is gear ratio also called velocity ratio?
The gear ratio of a train, also known as its speed ratio, is the ratio of the angular velocity of the input gear to the velocity of the output gear. The gear ratio is very important when it comes to physics.
Does friction affects velocity ratio?
No. The velocity ratio remains constant but the friction absorbs power.
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
What is a pure substants?
A pure substance is any substance with a fixed chemical composition, meaning either a single element or a compound (chemically-bound elements in a fixed ratio).
What is the fixed ratio of a chemical compound called?
The fixed ratio of the elements in a chemical compound is called its RATIO OF MASSES.
