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Radian Second Converter

Convert Radian Second to Revolution Minute and more • 12 conversions

Result

0

1 0
Conversion Formula
1 = ---
Quick Reference
1 = 1
10 = 10
50 = 50
100 = 100
500 = 500
1000 = 1000

Unit Explanations

Radian Secondrad·s

Source Unit

The radian second (rad·s) is a unit of angular velocity that quantifies the rate of rotation in terms of the angle rotated in radians per unit time, specifically seconds. One radian corresponds to the angle subtended at the center of a circle by an arc length equal to the radius of that circle. Thus, when measuring angular displacement, the radian second indicates how much of a full rotation (2π radians) occurs in one second. In mathematical terms, if θ is the angle in radians and t is the time in seconds, then angular velocity ω is represented as ω = θ/t, where ω is in rad·s.

ω = θ/t

Current Use

The radian second is widely used in various fields such as physics, engineering, and robotics to describe the rotational motion of objects. It is essential in analyzing systems involving gears, motors, and celestial mechanics. The unit is integral in the design of control systems, where the control of angular velocity is crucial for performance. In addition, it is commonly used in simulations and modeling of dynamic systems in both academic and industrial settings.

Fun Fact

The concept of a radian is inherently tied to the geometry of a circle, making it a natural fit for circular motion analysis.

Revolution per Minuterpm

Target Unit

The revolution per minute (rpm) is a unit of rotational speed that indicates the number of complete revolutions an object makes around a fixed axis in one minute. It is widely used in various engineering and scientific applications to quantify the speed of rotating machinery and components, such as motors, turbines, and wheels. Mathematically, it can be derived from the angular velocity, which is defined as the angle of rotation in radians divided by time in seconds. Thus, 1 rpm is equal to 2π radians per minute.

rpm = (Revolutions / Time in minutes)

Current Use

Today, the revolution per minute is extensively used in automotive engineering to specify engine speeds and in industrial applications to describe the performance of motors and pumps. It is essential for optimizing performance, ensuring safety, and improving efficiency in machinery. RPM is also utilized in audio equipment to specify the speed of turntables and in fitness equipment like stationary bikes.

Fun Fact

The term 'rpm' was first used in engineering texts in the early 20th century.

Decimals:
Scientific:OFF

Result

0

1
0
Conversion Formula
1 = ...
1→1
10→10
100→100
1000→1000

📐Conversion Formula

= × 1.00000

How to Convert

To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.

Quick Examples

1
=
1.000
10
=
10.00
100
=
100.0

💡 Pro Tip: For the reverse conversion (), divide by the conversion factor instead of multiplying.

rad·s

Radian Second

velocityNon-SI

Definition

The radian second (rad·s) is a unit of angular velocity that quantifies the rate of rotation in terms of the angle rotated in radians per unit time, specifically seconds. One radian corresponds to the angle subtended at the center of a circle by an arc length equal to the radius of that circle. Thus, when measuring angular displacement, the radian second indicates how much of a full rotation (2π radians) occurs in one second. In mathematical terms, if θ is the angle in radians and t is the time in seconds, then angular velocity ω is represented as ω = θ/t, where ω is in rad·s.

History & Origin

The concept of angular measurement has existed since ancient times, but the radian was formally defined in the 18th century by mathematicians such as Leonhard Euler. The radian as a unit became widely accepted for describing angular measurements due to its mathematical convenience, notably in calculus and trigonometry. The use of radian seconds emerged as a natural extension in physics and engineering to quantify angular velocities, particularly in rotational dynamics and wave mechanics.

Etymology: The term 'radian' is derived from the Latin word 'radius,' meaning 'ray' or 'spoke,' reflecting the relationship between the radius of a circle and the arc length it subtends.

1800: Formal introduction of the rad...1960: Inclusion of radian second in ...

Current Use

The radian second is widely used in various fields such as physics, engineering, and robotics to describe the rotational motion of objects. It is essential in analyzing systems involving gears, motors, and celestial mechanics. The unit is integral in the design of control systems, where the control of angular velocity is crucial for performance. In addition, it is commonly used in simulations and modeling of dynamic systems in both academic and industrial settings.

EngineeringRoboticsAerospace

💡 Fun Facts

  • The concept of a radian is inherently tied to the geometry of a circle, making it a natural fit for circular motion analysis.
  • The use of radians simplifies many mathematical equations in calculus, particularly those involving trigonometric functions.
  • The radian second can be used to describe not only rotational motion but also the frequency of oscillations in systems like springs.

📏 Real-World Examples

2 rad/s
A wheel rotating at a constant speed of 2 rad/s.
1 rad/s
A pendulum swinging with an angular velocity of 1 rad/s.
0.001 rad/s
A satellite orbiting the Earth at an angular rate of 0.001 rad/s.
5 rad/s
A motor with a specification of 5 rad/s for its maximum speed.
0.5 rad/s²
A rotating disc accelerating at 0.5 rad/s².

🔗 Related Units

Degree per Second (1 rad·s is approximately 57.296 degrees per second.)Revolution per Minute (RPM) (1 rad·s is equivalent to approximately 9.5493 RPM.)Radian (The radian is the angular measure that is used in the radian second unit.)Angular Acceleration (Measured in rad/s², it describes how angular velocity changes over time.)
rpm

Revolution per Minute

velocityNon-SI

Definition

The revolution per minute (rpm) is a unit of rotational speed that indicates the number of complete revolutions an object makes around a fixed axis in one minute. It is widely used in various engineering and scientific applications to quantify the speed of rotating machinery and components, such as motors, turbines, and wheels. Mathematically, it can be derived from the angular velocity, which is defined as the angle of rotation in radians divided by time in seconds. Thus, 1 rpm is equal to 2π radians per minute.

History & Origin

The concept of measuring rotational speed has been around since the introduction of machinery in the industrial revolution, where the need to quantify the speed of rotating parts became crucial. The unit 'revolution per minute' was adopted as a standard measure to facilitate consistent communication across engineering disciplines.

Etymology: The term 'revolution' comes from the Latin 'revolutio', meaning 'a rolling back'. The word 'minute' derives from the Latin 'minuta', meaning 'small', reflecting the division of time into smaller parts.

1959: Standardization of the rpm uni...

Current Use

Today, the revolution per minute is extensively used in automotive engineering to specify engine speeds and in industrial applications to describe the performance of motors and pumps. It is essential for optimizing performance, ensuring safety, and improving efficiency in machinery. RPM is also utilized in audio equipment to specify the speed of turntables and in fitness equipment like stationary bikes.

ManufacturingAutomotiveAerospaceMusic

💡 Fun Facts

  • The term 'rpm' was first used in engineering texts in the early 20th century.
  • High-performance sports cars can reach engine speeds of over 8000 rpm.
  • Some industrial turbines operate at speeds exceeding 20,000 rpm.

📏 Real-World Examples

3000 rpm
An electric motor operates at 3000 rpm
800 rpm
A car engine idles at 800 rpm
120 rpm
A bicycle wheel spins at 120 rpm
1400 rpm
A washing machine spins at 1400 rpm
33.3 rpm
A vinyl record player spins at 33.3 rpm

🔗 Related Units

Hertz (1 rpm is equal to 1/60 Hz, which measures cycles per second.)Degrees per Second (1 rpm equals 6 degrees per second.)Radians per Second (1 rpm is approximately 0.10472 radians per second.)Angular Velocity (Angular velocity in radians per second can be derived from rpm.)

Frequently Asked Questions

How do I convert to ?

To convert to , multiply your value by 1. For example, 10 equals 10 .

What is the formula for to conversion?

The formula is: = × 1. This conversion factor is based on international standards.

Is this to converter accurate?

Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.

Can I convert back to ?

Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.

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