Enter the mass (kg), the radius (m), and the angular acceleration (rad/s^2) into the Rotational Weight Calculator. The calculator will evaluate the Rotational Weight.

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## Rotational Weight Formula

The following formula is used to calculate the Rotational Weight.

RW = m*r*a

Variables:

- RW is the Rotational Weight (N)
- m is the mass (kg)
- r is the radius (m)
- a is the angular acceleration (rad/s^2)

To calculate the rotational weight, multiply the mass, radius, and angular acceleration together.

## How to Calculate Rotational Weight?

The following two example problems outline the steps and information needed to calculate the Rotational Weight.

**Example Problem #1**

- First, determine the mass (kg).
- The mass (kg) is calculated to be : 3.

- Next, determine the radius (m).
- The radius (m) is measured to be: 4.

- Next, determine the angular acceleration (rad/s^2).
- The angular acceleration (rad/s^2) is found to be: 5.

- Finally, calculate the Rotational Weight using the formula above:

RW = m*r*a

The values provided above are inserted into the equation below and computed.

RW = 3*4*5 = 60.00 (N)

**Example Problem #2**

The variables required for this problem are provided below:

mass (kg) = 6

radius (m) = 7

angular acceleration (rad/s^2) = 9

Test your knowledge and check your answer with the calculator.

RW = m*r*a =** **(N)