Mechanics Formulas Flashcards
1
Q
Absolute error am
A
A1+a2+a3+an ÷n
2
Q
Mean absolute error delta a
A
A1 +a2+an÷n everything in mod
3
Q
Relative error
A
Mean absolute error /absolute error
4
Q
Percentage error
A
Mean absolute error/absolute error ×100
5
Q
Error in addition or substracttion
A
Delta x =+-delta a/a +delta b /b
6
Q
Error in multiplication or division
A
Delta x by x =+-delta a by a plus delta b by b
7
Q
Scalar product of orthogonal unit vector
A
I.i=j.j=k.k=1
I.j=j.k=k.i = 0
8
Q
Vector product of orthogonal unit vector
A
I×i=j×j=k×k=0
I×j=k
J×k=I
K×i=j
9
Q
Area
A
Length ×breadth
10
Q
Volume
A
Length ×breadth ×height
11
Q
Density
A
Mass /volume
12
Q
Speed
A
Distance /time
13
Q
Velocity
A
Displacement upon time
14
Q
Acceleration
A
Change in velocity /time
15
Q
Equations of motion
A
V=u+at
S=ut+1/2at^2
V^2=u^2+2as
