Inverse Dynamics

Question 1

What is Moment of Inertia?

Answer 1

Determines the resistance to angular acceleration

Determined by the axis of rotation and the distribution of mass away from that axis

(The Smaller the Moment of Inertia = the more rapid the acceleration)

Question 2

What is Radius of Gyration?

Answer 2

The Distance from the axis of rotation to the point where the segments mass could be concentrated (without altering its rotational characteristics)

Question 3

What is the formula for Forces?

Answer 3

Σ Force = Mass x Acceleration

Question 4

What is the formula for Torque?

Answer 4

Σ Torque = Inertia x angular acceleration

Question 5

Units for each of the following
a) Mass
b) Weight
c) Inertia
d) Torque
e) Angular Acceleration

Answer 5

a) Kg
b) Newtons (N)
c) Kg / m(squared)
d) Newton-metres
e) Radians per second

Question 6

Formula for a single torque?

Answer 6

Torque = Force x Moment Arm

Question 7

A Torque in the: (Positive or Negative)
a) clockwise direction is?
b) Anticlockwise direction is?

Answer 7

A) Negative Torque
b) Positive Torque