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3 cards from this section. Quick, good the night before a test.
What is the formula for torque?
Think about how force is applied at an angle.
Define moment of inertia.
Consider how mass and distance from the rotation axis affect it.
What is the angular displacement equation?
Remember 'TWO' for θ, ω, α.
Torque is the rotational equivalent of what?
Think about the physical descriptions.
A disk of mass 2 kg rotates with an angular speed of 10 rad/s. If a force of 5 N is applied tangentially at the edge, what will be the angular acceleration?
Don’t forget to use the moment of inertia for the disk shape.
A rotating object has a moment of inertia of 5 kg·m² and is subjected to a net torque of 15 N·m. What is its angular acceleration?
Remember to rearrange the equation for angular acceleration.
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