- #1
robert
- 23
- 0
If the derivative of displacement if velocity, and the derivative of displacement is acceleration, does the derivative of acceleration give you anything? We were trying to think of something in class today but couldnt.
In physics, jerk (in British English, jolt), also called surge, is the derivative of acceleration with respect to time (or the third derivative of displacement). Yank is mass times jerk, or equivalently, the derivative of force with respect to time. Jerk is a vector, and there is no generally used term to describe its scalar value.
The units of jerk are metres per second cubed (m/s3). There is no universal agreement on the symbol for jerk, but j is commonly used.
Jerk is used at times in engineering, especially when building roller coasters. Some precision or fragile objects—such as passengers, who need time to sense stress changes and adjust their muscle tension, or suffer e.g. whiplash—can be safely subjected not only to a maximum acceleration, but also to a maximum jerk. Jerk may be considered when the excitation of vibrations is a concern.
Higher derivatives of displacement than jerk also exist, but they are rarely necessary, and hence lack agreed names. Many suggestions have been made, such as jilt, jouse and jolt. In development of the Hubble Space Telescope's pointing control system, the fourth derivative of position was considered and the engineers used the word jounce in their publications.
whozum said:Also, the derivative of velocity is acceleration, you seem to have a little mix-up there.
The derivative of acceleration is the rate of change of acceleration over time. It measures how quickly acceleration is changing at a specific moment in time.
The derivative of acceleration is important because it helps us understand the motion of an object. By knowing how quickly acceleration is changing, we can determine the velocity and position of an object at any given time.
The derivative of acceleration is calculated by finding the rate of change of acceleration using the formula: a = dv/dt, where a is acceleration, v is velocity, and t is time.
Acceleration is the rate of change of velocity, so the derivative of acceleration is equivalent to the second derivative of velocity. This means that the derivative of acceleration can tell us how the velocity of an object is changing over time.
The derivative of acceleration has many real-world applications, such as in the design of roller coasters, cars, and airplanes. It is also used in sports to analyze the performance of athletes, and in physics to study the motion of objects in space.