Finding angular velocity of a rotating bar using energy methods about pin - Method 1

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Physics, Science
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University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary method used in this video to calculate angular velocity?
Kinematic equations
Energy methods
Lagrangian mechanics
Newton's laws
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the free body diagram, which force is always directed downwards?
Gravitational force
Frictional force
Normal force
Tension force
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What variable is introduced to describe the angular displacement of the rod?
Alpha
Gamma
Beta
Theta
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of the gravitational force contributes to the torque?
MG cosine Theta
MG sine Theta
MG secant Theta
MG tangent Theta
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What theorem is used to find the moment of inertia around a new axis?
Pythagorean theorem
Parallel axis theorem
Cavalieri's principle
Perpendicular axis theorem
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the moment of inertia of a bar rotating around its center of mass?
1/3 ML^2
1/6 ML^2
1/2 ML^2
1/12 ML^2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between angular acceleration and angular velocity in this context?
Alpha = Omega^2
Alpha = d(Omega)/d(Theta) * Omega
Alpha = Omega * Theta
Alpha = d(Theta)/d(Omega) * Omega
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