Linear Equations of Motion
The equations that apply to bodies moving linearly (that is, one dimension) with uniform acceleration.
These equations are often referred to as the "SUVAT equations", as the 5 variables they involve are represented by those letters.
(s = displacement, u = initial velocity, v = final velocity, a = acceleration, t = time)
Features
- Determines : 2 Unknown values from 3 known values (displacement, initial velocity, final velocity, acceleration, time)
For example : If an object is dropped from a hight of 1 metre, what will be its impact velocity and the time taken to fall?
Thus : The initial velocity (u) = 0 m/s. The distance travelled (s) = 1 m. The acceleration (a) = 9.80665 m/sē
Then : The Impact velocity (v) = 4.42869055 m/s, The time taken (t) = 0.45160076 s
Note : This does assume there is no drag due to air, and acceleration due to free fall at this location is exactly 9.80665 m/sē !
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