MechOneSecA-1 Flashcards Preview

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Flashcards in MechOneSecA-1 Deck (13):
1

Difference ,Mass and Weight

Mass=Amount of Matter in an Object
Weight=Measure of gravity on Mass

2

Calculate Mass

F/a=m
F=Newtons
m=kgs
a=9.81

3

Calculate Weight

F=ma
F=Newtons
m=kgs
a=9.81

4

Magnitude and Direction Problem 1

Setup
Re. Need Right angle triangles
Convert Values to Base units
ID Baseline

5

Magnitude and Direction Problem 3

Spot 90DEG Rule
180DEG Rule
Duplicate Angles
Z Rule
Label Everything

6

Magnitude and Direction Problem 5

Resultant=New_Baseline^2+opp^2
Magnitude=sin^-1 (opp/Resultant)
Draw in Bearing cross
Run Bearing

7

Magnitude and Direction Problem 4

Start on new Triangle
[Hypo] Cos [Angle] = [adj]
[Hypo] Sin [Angle] = [opp]
Add Baselines

8

Sine Rule?

a/sinA = b/sinB = c/sinC
Let a be a known Angle
2 angles and 1 length
A = Angle a = Length

9

Cosine Rule?

a^2=b^2+c^2-2bc Cos A
Let a be a known Angle
2 Length and 1 angle
A = Angle a = Length

10

Wrench Problem 1

Fxr=TQE
F=N
r=m
TQE=Nm
Convert Values

11

Wrench Problem 2

Draw Circle(F)
Draw Radius(r) aka Wrench

12

Magnitude and Direction Problem 2

Push Line
Drop 90DEG and New_Baseline
Run Resultant

13

Wrench Problem 3

Draw Pivotpoint(TQE) aka Nut
Reaarange and solve