How to Calculate Rotation

To calculate rotation is to calculate the rate at which an object spins around its axis. The amount of energy required to keep an object rotating increases in proportion to the mass of the object involved. Unless the object is suspended in outerspace, friction will gradually slow the object's rotation until eventually the rotation ceases altogether. Formulas involving rotation can be used for predicting the behavior of a child's toy top to the movement of entire planets.

Instructions

1. Decide which unit of time you want for your calculations. This can be either hours, minutes, or seconds. The best unit of time is going to depend on the size and speed of the object being measured. The rotation of larger objects, such as planets, may be best measured in relation to hours, whereas the rotation of smaller, faster objects may be best measured in minutes or even seconds.

2. Using the units of time chosen in the previous step, determine the amount of time that it takes for the object to make one full rotation. A full rotation is considered to be the time that it takes for a single point on the object's surface to make one complete trip around the object's axis.

3. Take the number 360 and divide it by the time it takes for the object to make a full rotation. The quotient obtained from the division is the number of degrees that the object rotates per unit of time. In other words, it is the object's rate of rotation expressed in degrees per hour, minute, or second. Which of these three units of time it is depends on which unit of time you used to measure the object's rotation.

References

• http://knowledgerush.com