Angular Motion Flashcards
1
Q
what is one radian equal to
A
57.3 degrees
2
Q
Which direction is positive and which is negative ?
A
Counter clockwise is positive, clockwise is negative
3
Q
Equation for angular velocity
A
Deltatheta/delta time
4
Q
Radial acceleration, what is it and equation
A
Same thing as centripital- ar=v^2/r
5
Q
Why is relative joint angle important?
A
Because the angle will change depending on what you use as the angle line.
6
Q
What is Absolute angle
A
Segment Angle with respect to a fixed line
7
Q
What is different between mechanical devices and humans
A
Mech. devices have fixed centers of rotation (pivot point or hinge, and humans do not.
8
Q
Equation for angular acceleration
A
a=DeltaW/DeltaT
9
Q
Relate linear and and angular displacement
A
d=Theta*r
10
Q
Relationship between linear and angular velocity
A
V=rW
